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PostgreSQL Integer Overflow or Wraparound Vulnerability - CVE-2026-14677 - Vulnerability Database
PostgreSQL

PostgreSQL Integer Overflow or Wraparound Vulnerability - CVE-2026-14677

High
Reference: CVE-2026-14677
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-14677
Title: PostgreSQL Integer Overflow or Wraparound Vulnerability
Overview:

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.