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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-14677

PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound

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Status
Published
Published
Updated
Assigning organization
PostgreSQL

Description

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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a PostgreSQL

Default version status: unaffected

  • 18 to < 18.6affected
  • 17 to < 17.11affected
  • 16 to < 16.15affected
  • 15 to < 15.19affected
  • 0 to < 14.24affected

References