CVE-2026-14677

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-14677", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-07-03T20:28:16.721Z", "datePublished": "2026-08-13T13:00:08.067Z", "dateUpdated": "2026-08-29T23:07:20.774Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-08-29T23:07:20.774Z"}, "title": "PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound", "x_postgresql": {"component": "core server"}, "descriptions": [{"lang": "en", "value": "Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."}], "affected": [{"defaultStatus": "unaffected", "product": "PostgreSQL", "vendor": "n/a", "versions": [{"lessThan": "18.6", "status": "affected", "version": "18", "versionType": "rpm"}, {"lessThan": "17.11", "status": "affected", "version": "17", "versionType": "rpm"}, {"lessThan": "16.15", "status": "affected", "version": "16", "versionType": "rpm"}, {"lessThan": "15.19", "status": "affected", "version": "15", "versionType": "rpm"}, {"lessThan": "14.24", "status": "affected", "version": "0", "versionType": "rpm"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "type": "CWE", "description": "Integer Overflow or Wraparound"}]}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-14677/"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "configurations": [{"lang": "en", "value": "Attacker has permission to \"CREATE EXTENSION plperl\" or \"CREATE EXTENSION pltcl\"; alternatively, another user previously issued one of those. Attacker has permission to create objects (temporary objects or non-temporary objects in at least one schema)."}], "credits": [{"lang": "en", "value": "The PostgreSQL project thanks Tulya Project, Team Dhiutsa, Bitecope Technologies Private Ltd for reporting this problem."}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-13T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-14677"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-14T03:55:42.134Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-14677", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-13T14:40:08.936303Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T15:36:34.878Z"}}], "cna": {"title": "PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound", "credits": [{"lang": "en", "value": "The PostgreSQL project thanks Tulya Project, Team Dhiutsa, Bitecope Technologies Private Ltd for reporting this problem."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "affected": [{"vendor": "n/a", "product": "PostgreSQL", "versions": [{"status": "affected", "version": "18", "lessThan": "18.6", "versionType": "rpm"}, {"status": "affected", "version": "17", "lessThan": "17.11", "versionType": "rpm"}, {"status": "affected", "version": "16", "lessThan": "16.15", "versionType": "rpm"}, {"status": "affected", "version": "15", "lessThan": "15.19", "versionType": "rpm"}, {"status": "affected", "version": "0", "lessThan": "14.24", "versionType": "rpm"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-14677/"}], "descriptions": [{"lang": "en", "value": "Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "Integer Overflow or Wraparound"}]}], "x_postgresql": {"component": "core server"}, "configurations": [{"lang": "en", "value": "Attacker has permission to \"CREATE EXTENSION plperl\" or \"CREATE EXTENSION pltcl\"; alternatively, another user previously issued one of those. Attacker has permission to create objects (temporary objects or non-temporary objects in at least one schema)."}], "providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-08-29T23:07:20.774Z"}}}, "cveMetadata": {"cveId": "CVE-2026-14677", "state": "PUBLISHED", "dateUpdated": "2026-08-29T23:07:20.774Z", "dateReserved": "2026-07-03T20:28:16.721Z", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "datePublished": "2026-08-13T13:00:08.067Z", "assignerShortName": "PostgreSQL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PostgreSQL", "vendor": "n/a", "versions": [{"lessThan": "18.6", "status": "affected", "version": "18", "versionType": "rpm"}, {"lessThan": "17.11", "status": "affected", "version": "17", "versionType": "rpm"}, {"lessThan": "16.15", "status": "affected", "version": "16", "versionType": "rpm"}, {"lessThan": "15.19", "status": "affected", "version": "15", "versionType": "rpm"}, {"lessThan": "14.24", "status": "affected", "version": "0", "versionType": "rpm"}]}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*", "matchCriteriaId": "6BEE5714-C2EF-48DC-8613-C3EAA149E12E", "versionEndExcluding": "14.24", "versionStartIncluding": "14.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*", "matchCriteriaId": "F433746A-733F-4ED0-9913-8AF69E0C8BF2", "versionEndExcluding": "15.19", "versionStartIncluding": "15.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*", "matchCriteriaId": "1996B91F-E0B2-4A78-8788-E17EA68D179C", "versionEndExcluding": "16.15", "versionStartIncluding": "16.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*", "matchCriteriaId": "3D04E642-71D7-4979-AA19-B9CCDEFD8C31", "versionEndExcluding": "17.11", "versionStartIncluding": "17.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*", "matchCriteriaId": "8494F67B-673A-4E1F-8F40-D24DCC1F8DA4", "versionEndExcluding": "18.5", "versionStartIncluding": "18.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."}], "id": "CVE-2026-14677", "lastModified": "2026-08-29T23:17:15.867", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-14677", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-13T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-08-13T13:17:45.027", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "tags": ["Vendor Advisory"], "url": "https://www.postgresql.org/support/security/CVE-2026-14677/"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18,18.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17,17.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16,16.15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15,15.19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,14.24)"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PostgreSQL", "source": "cna", "vendor": "n/a"}, "product": "postgresql", "vendor": "postgresql"}], "created": "2026-08-13T14:45:03.081488+00:00", "updated": "2026-08-30T01:00:15.002697+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}