High severity8.8NVD Advisory· Published Aug 13, 2026
CVE-2026-14677
CVE-2026-14677
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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- Range: <18.5, <17.11, <16.15, <15.19, <14.24
- Range: <18.5, <17.11, <16.15, <15.19, <14.24
- Range: <18.5, <17.11, <16.15, <15.19, <14.24
Patches
Vulnerability mechanics
References
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