CVE-2026-66838

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-66838", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-08-06T14:00:01.865Z", "datePublished": "2026-08-07T12:20:02.376Z", "dateUpdated": "2026-08-07T15:12:12.308Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "packageName": "postgrex", "packageURL": "pkg:hex/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "versions": [{"lessThan": "0.22.4", "status": "affected", "version": "0.19.3", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "packageName": "elixir-ecto/postgrex", "packageURL": "pkg:github/elixir-ecto/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "versions": [{"changes": [{"at": "e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c", "status": "unaffected"}, {"at": "4011be852c99dc61ddb98cb01aa41e8775a0e3dd", "status": "unaffected"}], "lessThan": "*", "status": "affected", "version": "4971a2722fa72f8e1b54a2c403cad4c43916e36d", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The application must pass a <code>:comment</code> derived from untrusted input to <code>Postgrex.stream/4</code> or <code>Ecto.Repo.stream/2</code>. Applications that omit the option or pass only static values are unaffected.</p>"}, {"base64": false, "type": "text/markdown", "value": "The application must pass a `:comment` derived from untrusted input to `Postgrex.stream/4` or `Ecto.Repo.stream/2`. Applications that omit the option or pass only static values are unaffected."}], "value": "The application must pass a :comment derived from untrusted input to Postgrex.stream/4 or Ecto.Repo.stream/2. Applications that omit the option or pass only static values are unaffected."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.22.4", "versionStartIncluding": "0.19.3", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Snehil Shah"}, {"lang": "en", "type": "remediation developer", "value": "Jos\u00e9 Valim"}, {"lang": "en", "type": "analyst", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the <code>:comment</code> option of <code>Postgrex.stream/4</code>. An attacker who can influence that value can close the comment delimiter with <code>*/</code> and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through <code>Ecto.Repo.stream/2</code>.</p>\n<p>Postgrex appends the comment by concatenating it into the statement text sent in the <code>Parse</code> message, without escaping or rejecting <code>*/</code>. The option is validated by <code>comment_not_present!/1</code> at every other execution point; <code>stream/4</code> never calls it. Because <code>Parse</code> accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.</p>\n<p>This issue affects postgrex: from 0.19.3 before 0.22.4.</p>"}, {"base64": false, "type": "text/markdown", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the `:comment` option of `Postgrex.stream/4`. An attacker who can influence that value can close the comment delimiter with `*/` and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through `Ecto.Repo.stream/2`.\n\nPostgrex appends the comment by concatenating it into the statement text sent in the `Parse` message, without escaping or rejecting `*/`. The option is validated by `comment_not_present!/1` at every other execution point; `stream/4` never calls it. Because `Parse` accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.\n\nThis issue affects postgrex: from 0.19.3 before 0.22.4."}], "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the :comment option of Postgrex.stream/4. An attacker who can influence that value can close the comment delimiter with */ and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through Ecto.Repo.stream/2.\n\nPostgrex appends the comment by concatenating it into the statement text sent in the Parse message, without escaping or rejecting */. The option is validated by comment_not_present!/1 at every other execution point; stream/4 never calls it. Because Parse accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.\n\nThis issue affects postgrex: from 0.19.3 before 0.22.4."}], "impacts": [{"capecId": "CAPEC-66", "descriptions": [{"lang": "en", "value": "CAPEC-66 SQL Injection"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "baseScore": 5.9, "baseSeverity": "MEDIUM", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-89", "description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-08-07T12:20:02.376Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-66838.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-66838"}, {"tags": ["patch"], "url": "https://github.com/elixir-ecto/postgrex/commit/e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c"}, {"tags": ["patch"], "url": "https://github.com/elixir-ecto/postgrex/commit/4011be852c99dc61ddb98cb01aa41e8775a0e3dd"}], "source": {"discovery": "EXTERNAL"}, "title": "SQL injection via the :comment option in Postgrex.stream/4", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Reject any <code>:comment</code> value containing <code>*/</code> or a null byte before passing it to <code>Postgrex.stream/4</code> or <code>Ecto.Repo.stream/2</code>. Alternatively, build comments only from trusted values.</p>"}, {"base64": false, "type": "text/markdown", "value": "Reject any `:comment` value containing `*/` or a null byte before passing it to `Postgrex.stream/4` or `Ecto.Repo.stream/2`. Alternatively, build comments only from trusted values."}], "value": "Reject any :comment value containing */ or a null byte before passing it to Postgrex.stream/4 or Ecto.Repo.stream/2. Alternatively, build comments only from trusted values."}]}, "adp": [{"references": [{"url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-07T15:11:28.060095Z", "id": "CVE-2026-66838", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-07T15:12:12.308Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-66838", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-07T15:11:28.060095Z"}}}], "references": [{"url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-07T15:12:07.776Z"}}], "cna": {"title": "SQL injection via the :comment option in Postgrex.stream/4", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Snehil Shah"}, {"lang": "en", "type": "remediation developer", "value": "Jos\u00e9 Valim"}, {"lang": "en", "type": "analyst", "value": "Jonatan M\u00e4nnchen / EEF"}], "impacts": [{"capecId": "CAPEC-66", "descriptions": [{"lang": "en", "value": "CAPEC-66 SQL Injection"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.9, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "product": "postgrex", "versions": [{"status": "affected", "version": "0.19.3", "lessThan": "0.22.4", "versionType": "semver"}], "packageURL": "pkg:hex/postgrex", "packageName": "postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "collectionURL": "https://repo.hex.pm", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}]}, {"cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "product": "postgrex", "versions": [{"status": "affected", "changes": [{"at": "e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c", "status": "unaffected"}, {"at": "4011be852c99dc61ddb98cb01aa41e8775a0e3dd", "status": "unaffected"}], "version": "4971a2722fa72f8e1b54a2c403cad4c43916e36d", "lessThan": "*", "versionType": "git"}], "packageURL": "pkg:github/elixir-ecto/postgrex", "packageName": "elixir-ecto/postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "collectionURL": "https://github.com", "defaultStatus": "unaffected", "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}]}], "references": [{"url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388", "tags": ["vendor-advisory", "related"]}, {"url": "https://cna.erlef.org/cves/CVE-2026-66838.html", "tags": ["related"]}, {"url": "https://osv.dev/vulnerability/EEF-CVE-2026-66838", "tags": ["related"]}, {"url": "https://github.com/elixir-ecto/postgrex/commit/e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c", "tags": ["patch"]}, {"url": "https://github.com/elixir-ecto/postgrex/commit/4011be852c99dc61ddb98cb01aa41e8775a0e3dd", "tags": ["patch"]}], "workarounds": [{"lang": "en", "value": "Reject any :comment value containing */ or a null byte before passing it to Postgrex.stream/4 or Ecto.Repo.stream/2. Alternatively, build comments only from trusted values.", "supportingMedia": [{"type": "text/html", "value": "<p>Reject any <code>:comment</code> value containing <code>*/</code> or a null byte before passing it to <code>Postgrex.stream/4</code> or <code>Ecto.Repo.stream/2</code>. Alternatively, build comments only from trusted values.</p>", "base64": false}, {"type": "text/markdown", "value": "Reject any `:comment` value containing `*/` or a null byte before passing it to `Postgrex.stream/4` or `Ecto.Repo.stream/2`. Alternatively, build comments only from trusted values.", "base64": false}]}], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the :comment option of Postgrex.stream/4. An attacker who can influence that value can close the comment delimiter with */ and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through Ecto.Repo.stream/2.\n\nPostgrex appends the comment by concatenating it into the statement text sent in the Parse message, without escaping or rejecting */. The option is validated by comment_not_present!/1 at every other execution point; stream/4 never calls it. Because Parse accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.\n\nThis issue affects postgrex: from 0.19.3 before 0.22.4.", "supportingMedia": [{"type": "text/html", "value": "<p>Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the <code>:comment</code> option of <code>Postgrex.stream/4</code>. An attacker who can influence that value can close the comment delimiter with <code>*/</code> and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through <code>Ecto.Repo.stream/2</code>.</p>\n<p>Postgrex appends the comment by concatenating it into the statement text sent in the <code>Parse</code> message, without escaping or rejecting <code>*/</code>. The option is validated by <code>comment_not_present!/1</code> at every other execution point; <code>stream/4</code> never calls it. Because <code>Parse</code> accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.</p>\n<p>This issue affects postgrex: from 0.19.3 before 0.22.4.</p>", "base64": false}, {"type": "text/markdown", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the `:comment` option of `Postgrex.stream/4`. An attacker who can influence that value can close the comment delimiter with `*/` and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through `Ecto.Repo.stream/2`.\n\nPostgrex appends the comment by concatenating it into the statement text sent in the `Parse` message, without escaping or rejecting `*/`. The option is validated by `comment_not_present!/1` at every other execution point; `stream/4` never calls it. Because `Parse` accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.\n\nThis issue affects postgrex: from 0.19.3 before 0.22.4.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-89", "description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')"}]}], "configurations": [{"lang": "en", "value": "The application must pass a :comment derived from untrusted input to Postgrex.stream/4 or Ecto.Repo.stream/2. Applications that omit the option or pass only static values are unaffected.", "supportingMedia": [{"type": "text/html", "value": "<p>The application must pass a <code>:comment</code> derived from untrusted input to <code>Postgrex.stream/4</code> or <code>Ecto.Repo.stream/2</code>. Applications that omit the option or pass only static values are unaffected.</p>", "base64": false}, {"type": "text/markdown", "value": "The application must pass a `:comment` derived from untrusted input to `Postgrex.stream/4` or `Ecto.Repo.stream/2`. Applications that omit the option or pass only static values are unaffected.", "base64": false}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "0.22.4", "versionStartIncluding": "0.19.3"}], "operator": "OR"}], "operator": "AND"}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-08-07T12:20:02.376Z"}}}, "cveMetadata": {"cveId": "CVE-2026-66838", "state": "PUBLISHED", "dateUpdated": "2026-08-07T15:12:12.308Z", "dateReserved": "2026-08-06T14:00:01.865Z", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "datePublished": "2026-08-07T12:20:02.376Z", "assignerShortName": "EEF"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "packageName": "postgrex", "packageURL": "pkg:hex/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "versions": [{"lessThan": "0.22.4", "status": "affected", "version": "0.19.3", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex'", "'Elixir.Postgrex.Protocol'"], "packageName": "elixir-ecto/postgrex", "packageURL": "pkg:github/elixir-ecto/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex.ex", "lib/postgrex/protocol.ex"], "programRoutines": [{"name": "'Elixir.Postgrex':stream/4"}, {"name": "'Elixir.Postgrex.Protocol':parse_describe_comment_msgs/3"}], "repo": "https://github.com/elixir-ecto/postgrex", "vendor": "elixir-ecto", "versions": [{"changes": [{"at": "e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c", "status": "unaffected"}, {"at": "4011be852c99dc61ddb98cb01aa41e8775a0e3dd", "status": "unaffected"}], "lessThan": "*", "status": "affected", "version": "4971a2722fa72f8e1b54a2c403cad4c43916e36d", "versionType": "git"}]}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*", "matchCriteriaId": "15B08735-414F-4252-9357-F1CA4081CAF5", "versionEndExcluding": "0.22.4", "versionStartIncluding": "0.19.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex allows SQL Injection via the :comment option of Postgrex.stream/4. An attacker who can influence that value can close the comment delimiter with */ and extend the streamed statement with their own clauses, which execute under the connection's role. Ecto exposes the same option through Ecto.Repo.stream/2.\n\nPostgrex appends the comment by concatenating it into the statement text sent in the Parse message, without escaping or rejecting */. The option is validated by comment_not_present!/1 at every other execution point; stream/4 never calls it. Because Parse accepts a single command, the injection is confined to the streamed statement and further statements cannot be chained.\n\nThis issue affects postgrex: from 0.19.3 before 0.22.4."}, {"lang": "es", "value": "Vulnerabilidad de Neutralizaci\u00f3n Incorrecta de Elementos Especiales utilizados en un Comando SQL (\u2019inyecci\u00f3n SQL\u2019) en elixir-ecto postgrex permite la inyecci\u00f3n SQL a trav\u00e9s de la opci\u00f3n :comment de Postgrex.stream/4. Un atacante que puede influir en ese valor puede cerrar el delimitador de comentario con */ y extender la declaraci\u00f3n transmitida con sus propias cl\u00e1usulas, las cuales se ejecutan bajo el rol de la conexi\u00f3n. Ecto expone la misma opci\u00f3n a trav\u00e9s de Ecto.Repo.stream/2.\n\nPostgrex a\u00f1ade el comentario concaten\u00e1ndolo en el texto de la declaraci\u00f3n enviado en el mensaje Parse, sin escapar o rechazar */. La opci\u00f3n es validada por comment_not_present!/1 en cualquier otro punto de ejecuci\u00f3n; stream/4 nunca la llama. Debido a que Parse acepta un solo comando, la inyecci\u00f3n se limita a la declaraci\u00f3n transmitida y no se pueden encadenar declaraciones adicionales.\n\nEste problema afecta a postgrex: desde 0.19.3 antes de 0.22.4."}], "id": "CVE-2026-66838", "lastModified": "2026-10-24T16:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-66838", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-07T15:11:28.060095Z", "version": "2.0.3"}}]}, "published": "2026-08-07T13:16:52.960", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "tags": ["Patch", "Third Party Advisory"], "url": "https://cna.erlef.org/cves/CVE-2026-66838.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "tags": ["Patch"], "url": "https://github.com/elixir-ecto/postgrex/commit/4011be852c99dc61ddb98cb01aa41e8775a0e3dd"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "tags": ["Patch"], "url": "https://github.com/elixir-ecto/postgrex/commit/e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "tags": ["Patch", "Third Party Advisory"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-66838"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Patch", "Vendor Advisory"], "url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-3gww-3f36-2388"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.19.3,0.22.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4971a2722fa72f8e1b54a2c403cad4c43916e36d,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "code_commit", "value": "e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "code_commit", "value": "4011be852c99dc61ddb98cb01aa41e8775a0e3dd"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "postgrex", "vendor": "elixir-ecto"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.19.3,0.22.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "postgrex", "source": "cna", "vendor": "elixir-ecto"}, "product": "postgrex", "vendor": "elixir-ecto"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4971a2722fa72f8e1b54a2c403cad4c43916e36d,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "code_commit", "value": "e1ecba618ddea4cee2556bd6ad9b6285e05f9d3c"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "code_commit", "value": "4011be852c99dc61ddb98cb01aa41e8775a0e3dd"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "postgrex", "source": "cna", "vendor": "elixir-ecto"}, "product": "postgrex", "vendor": "elixir-ecto"}], "created": "2026-08-07T14:00:03.467706+00:00", "updated": "2026-08-07T16:00:04.368508+00:00", "vendors": ["elixir-ecto", "elixir-ecto$PRODUCT$postgrex"]}