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Change History

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-190

https://www.postgresql.org/support/security/CVE-2026-14677/

[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","lessThan":"18.5","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","status":"affected"}]}]