VDB
CVE-2026-14677
CVE-2026-14677
PUBLISHED
CVSS 8.8 HIGH
Reported by PostgreSQL · Published August 13, 2026
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.
Risk Scores
CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | PostgreSQL | 18, 17, 16 |
| alpine | postgresql16 | 0, 0, 0 |
| alpine | postgresql17 | 0, 0, 0 |
| alpine | postgresql15 | 0, 0, 0 |
| n/a | PostgreSQL | 0, 18, 17 |
| alpine | postgresql18 | 0, 0, 0 |
Timeline
- Aug 13, 2026 CVE Published
- Aug 15, 2026 Coalition ESS Score
- Aug 20, 2026 Security Advisory
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 30, 2026 EPSS Score
- Sep 3, 2026 EPSS Score
- Sep 6, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 14, 2026 Distribution Patch
- Sep 14, 2026 Security Advisory