BIT-postgresql-2026-14677

vendorUSosv

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

view advisory published 2026-08-19Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-14677US	—	—	—	—

references

External citations — patches, advisories, analysis.

https://nvd.nist.gov/vuln/detail/CVE-2026-14677WEB
https://www.postgresql.org/support/security/CVE-2026-14677/ADVISORY

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