{"id":"CVE-2026-6666","aliases":["AZL-86243","BIT-pgbouncer-2026-6666","DEBIAN-CVE-2026-6666","EUVD-2026-28878","GHSA-4463-8rvf-rj9f","UBUNTU-CVE-2026-6666"],"status":"published","title":"PgBouncer crash in kill_pool_logins_server_error","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00369,"percentile":0.31226,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-476"],"published":"2026-05-09T00:43:49Z","modified":"2026-10-17T12:59:18Z","exploits":[{"source":"pocgithub","id":"George0Papasotiriou/CVE-2026-6666-XPC-Service-NSKeyedUnarchiver-Deserialization-Attack-macOS-iOS-simulation-","title":"George0Papasotiriou/CVE-2026-6666-XPC-Service-NSKeyedUnarchiver-Deserialization-Attack-macOS-iOS-simulation-","date":"2026-08-03","url":"https://github.com/George0Papasotiriou/CVE-2026-6666-XPC-Service-NSKeyedUnarchiver-Deserialization-Attack-macOS-iOS-simulation-"}],"fixes":[{"ecosystem":"Azure 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Notes","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6666","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4463-8rvf-rj9f"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-6666","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-6666","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-6666","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-6666","title":"PgBouncer crash in kill_pool_logins_server_error","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T00:43:49.952Z","modified":"2026-05-11T14:44:15.596Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T13:50:04.986624Z"}],"euvd":[{"id":"EUVD-2026-28878","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T00:43:49Z","modified":"2026-05-11T14:44:15Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T19:05:11.205633Z"}],"ghsa":[{"id":"GHSA-4463-8rvf-rj9f","title":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server...","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T03:31:22Z","modified":"2026-05-09T03:31:22Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:07:58.197878Z"}],"nvd":[{"id":"CVE-2026-6666","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T01:16:09.153Z","modified":"2026-07-24T08:10:00.15Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:12:18.239974Z"}],"osv":[{"id":"DEBIAN-CVE-2026-6666","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T01:16:09.153Z","modified":"2026-10-01T03:03:38.487993899Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:58.699079Z"},{"id":"UBUNTU-CVE-2026-6666","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T01:16:00Z","modified":"2026-10-17T12:59:18.618515682Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:53.710209Z"},{"id":"AZL-86243","title":"CVE-2026-6666 affecting package pgbouncer for versions less than 1.25.2-1","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-09T01:16:09Z","modified":"2026-08-28T17:56:32.824857Z","updated_at":"2026-11-02T15:28:10.677811Z"},{"id":"BIT-pgbouncer-2026-6666","title":"PgBouncer crash in kill_pool_logins_server_error","description":"A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.","status":"published","published":"2026-05-12T08:52:53.259Z","modified":"2026-09-08T08:48:24.715054207Z","updated_at":"2026-11-02T15:28:34.343258Z"}]}}