{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-6479","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","state":"PUBLISHED","assignerShortName":"PostgreSQL","dateReserved":"2026-04-17T00:45:37.869Z","datePublished":"2026-05-14T13:00:13.859Z","dateUpdated":"2026-05-14T15:26:20.166Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","shortName":"PostgreSQL","dateUpdated":"2026-05-14T13:00:13.859Z"},"title":"PostgreSQL SSL/GSS init causes denial of service, via uncontrolled recursion","descriptions":[{"lang":"en","value":"Uncontrolled recursion in PostgreSQL SSL and GSS negotiation allows an attacker able to connect to a PostgreSQL AF_UNIX socket to achieve sustained denial of service.  If SSL and GSS are both disabled, an attacker can do the same via access to a PostgreSQL TCP socket.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."}],"affected":[{"defaultStatus":"unaffected","product":"PostgreSQL","vendor":"n/a","versions":[{"lessThan":"18.4","status":"affected","version":"18","versionType":"rpm"},{"lessThan":"17.10","status":"affected","version":"17","versionType":"rpm"},{"lessThan":"16.14","status":"affected","version":"16","versionType":"rpm"},{"lessThan":"15.18","status":"affected","version":"15","versionType":"rpm"},{"lessThan":"14.23","status":"affected","version":"0","versionType":"rpm"}]}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-674","type":"CWE","description":"Uncontrolled Recursion"}]}],"references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-6479/"}],"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"}}],"workarounds":[{"lang":"en","value":"enable SSL and/or GSS; disable unix_socket_directories"}],"credits":[{"lang":"en","value":"The PostgreSQL project thanks Calif.io in collaboration with Claude and Anthropic Research for reporting this problem."}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-14T15:26:13.223741Z","id":"CVE-2026-6479","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-05-14T15:26:20.166Z"}}]}}