CVE-2026-6664

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6664", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-04-20T12:25:43.095Z", "datePublished": "2026-05-09T00:43:42.640Z", "dateUpdated": "2026-05-11T14:28:49.277Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-05-09T00:43:42.640Z"}, "title": "PgBouncer integer overflow in PgBouncer network packet parsing", "descriptions": [{"lang": "en", "value": "An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet."}], "affected": [{"defaultStatus": "unaffected", "product": "PgBouncer", "vendor": "n/a", "versions": [{"lessThan": "1.25.2", "version": "0", "versionType": "semver", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "type": "CWE", "description": "Integer Overflow or Wraparound"}]}], "references": [{"url": "https://www.pgbouncer.org/changelog.html#pgbouncer-125x"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "configurations": [{"lang": "en", "value": "SCRAM client authentication is configured"}], "workarounds": [{"lang": "en", "value": "Do not configure SCRAM for client authentication"}], "credits": [{"lang": "en", "value": "Thanks to Johannes M\u00f6ller for finding and reporting this problem.", "type": "finder"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-11T14:28:40.974153Z", "id": "CVE-2026-6664", "options": [{"Exploitation": "none"}, {"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": "2026-05-11T14:28:49.277Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6664", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-04-20T12:25:43.095Z", "datePublished": "2026-05-09T00:43:42.640Z", "dateUpdated": "2026-05-11T14:28:49.277Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-05-09T00:43:42.640Z"}, "title": "PgBouncer integer overflow in PgBouncer network packet parsing", "descriptions": [{"lang": "en", "value": "An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet."}], "affected": [{"defaultStatus": "unaffected", "product": "PgBouncer", "vendor": "n/a", "versions": [{"lessThan": "1.25.2", "version": "0", "versionType": "semver", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "type": "CWE", "description": "Integer Overflow or Wraparound"}]}], "references": [{"url": "https://www.pgbouncer.org/changelog.html#pgbouncer-125x"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "configurations": [{"lang": "en", "value": "SCRAM client authentication is configured"}], "workarounds": [{"lang": "en", "value": "Do not configure SCRAM for client authentication"}], "credits": [{"lang": "en", "value": "Thanks to Johannes M\u00f6ller for finding and reporting this problem.", "type": "finder"}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-6664", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-11T14:28:40.974153Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T14:28:45.416Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PgBouncer", "vendor": "n/a", "versions": [{"lessThan": "1.25.2", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC45BB66-2289-466A-BC28-113710202BA5", "versionEndExcluding": "1.25.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet."}, {"lang": "es", "value": "Un desbordamiento de entero en el c\u00f3digo de an\u00e1lisis de paquetes de red en PgBouncer anterior a 1.25.2 omite una comprobaci\u00f3n de l\u00edmites y puede provocar una ca\u00edda. Un atacante remoto no autenticado puede provocar la ca\u00edda de PgBouncer con un paquete de autenticaci\u00f3n SCRAM malformado."}], "id": "CVE-2026-6664", "lastModified": "2026-07-24T08:10:00.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6664", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-11T14:28:40.974153Z", "version": "2.0.3"}}]}, "published": "2026-05-09T01:16:08.863", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "tags": ["Release Notes"], "url": "https://www.pgbouncer.org/changelog.html#pgbouncer-125x"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.25.2)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PgBouncer", "source": "cna", "vendor": "n/a"}, "product": "pgbouncer", "vendor": "pgbouncer"}], "created": "2026-05-09T02:30:16.162225+00:00", "updated": "2026-05-09T03:30:24.688239+00:00", "vendors": ["pgbouncer", "pgbouncer$PRODUCT$pgbouncer"]}