CVE-2026-14677 (GCVE-0-2026-14677)
Vulnerability from cvelistv5 – Published: 2026-08-13 13:00 – Updated: 2026-08-29 23:07
VLAI
EPSS
VEX
Title
PostgreSQL 32-bit pltcl and plperl undersize allocations, via integer wraparound
Summary
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.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 00:00 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | PostgreSQL |
Affected:
18 , < 18.6
(rpm)
Affected: 17 , < 17.11 (rpm) Affected: 16 , < 16.15 (rpm) Affected: 15 , < 15.19 (rpm) Affected: 0 , < 14.24 (rpm) |
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