{"id":"CVE-2026-14678","state":"PUBLISHED","title":"PostgreSQL pg_trgm picksplit reads past end of buffer","description":"Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer.  This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.","publishedAt":"2026-08-13T13:00:08.713Z","updatedAt":"2026-08-29T23:07:21.812Z","severity":{"score":4.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","source":"PostgreSQL"},"assigner":"PostgreSQL","products":["n/a PostgreSQL"],"affected":[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","status":"affected","lessThan":"18.6","versionType":"rpm"},{"version":"17","status":"affected","lessThan":"17.11","versionType":"rpm"},{"version":"16","status":"affected","lessThan":"16.15","versionType":"rpm"},{"version":"15","status":"affected","lessThan":"15.19","versionType":"rpm"},{"version":"0","status":"affected","lessThan":"14.24","versionType":"rpm"}]}],"references":["https://www.postgresql.org/support/security/CVE-2026-14678/"],"weaknesses":["CWE-126"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/14xxx/CVE-2026-14678.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-14678","state":"PUBLISHED","datePublished":"2026-08-13T13:00:08.713Z","dateUpdated":"2026-08-29T23:07:21.812Z","assignerShortName":"PostgreSQL","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateReserved":"2026-07-03T20:28:17.298Z"},"containers":{"cna":{"title":"PostgreSQL pg_trgm picksplit reads past end of buffer","descriptions":[{"lang":"en","value":"Buffer over-read in PostgreSQL pg_trgm index picksplit function reads past end of a heap buffer.  This might allow a table maintainer to infer limited memory values, via the lossy signal of index split choices.  Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected."}],"affected":[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","status":"affected","lessThan":"18.6","versionType":"rpm"},{"version":"17","status":"affected","lessThan":"17.11","versionType":"rpm"},{"version":"16","status":"affected","lessThan":"16.15","versionType":"rpm"},{"version":"15","status":"affected","lessThan":"15.19","versionType":"rpm"},{"version":"0","status":"affected","lessThan":"14.24","versionType":"rpm"}]}],"references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-14678/"}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-126","lang":"en","type":"CWE","description":"Buffer Over-read"}]}],"providerMetadata":{"shortName":"PostgreSQL","orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","dateUpdated":"2026-08-29T23:07:21.812Z"},"x_postgresql":{"component":"contrib module"},"configurations":[{"lang":"en","value":"Attacker has permission to \"CREATE EXTENSION pg_trgm\", or another user previously issued that.  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 Mehmet D. INCE for reporting this problem."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T14:39:23.325065Z","id":"CVE-2026-14678","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-13T15:36:52.887Z"}}]}}}