VDB
CVE-2026-14662
CVE-2026-14662
PUBLISHED
CVSS 8.8 HIGH
Reported by PostgreSQL · Published August 13, 2026
Integer wraparound in PostgreSQL tsvector and tsquery data type functions allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds, via crafted large inputs. This may execute arbitrary code as the operating system user running the database. These types are typically sourced from application logic, not taken from the application's user. Hence, application users attacking the database, through the application as a conduit, are unlikely. 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 | postgresql18 | 0, 0, 0 |
| alpine | postgresql17 | 0, 0, 0 |
| alpine | postgresql15 | 0, 0, 0 |
| n/a | PostgreSQL | 18, 17, 16 |
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