Vulnerability details
CVE-2026-6460
PostgreSQL
PostgreSQL type confusion after ALTER ... SET DATA TYPE executes arbitrary code
CVSS 3.1
8.8High
Remedy
Versions not listed as affected in the CVE record:
- PostgreSQL — version 18.7 and later
- PostgreSQL — version 17.12 and later
- PostgreSQL — version 16.16 and later
- PostgreSQL — version 15.20 and later
- PostgreSQL — version 14.25 and later
Official description
Type confusion in PostgreSQL allows an object creator to execute arbitrary code as the operating system user running the database, via ALTER ... SET DATA TYPE primarily. Other DDL attack routes exist, such as "ALTER TABLE ... ADD COLUMN; ROLLBACK; ALTER TABLE ... ADD COLUMN". The system had inadequate tracking of typed values, and values were not self-identifying. Stale values could appear in data dictionary entries, PL/pgSQL variables, and many other parts of the system. PostgreSQL Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Related news
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (PostgreSQL) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| — | PostgreSQL | v < 14.25 | CVEProject cvelistV5 (CNA) |
| — | PostgreSQL | 15 ≤ v < 15.20 | CVEProject cvelistV5 (CNA) |
| — | PostgreSQL | 16 ≤ v < 16.16 | CVEProject cvelistV5 (CNA) |
| — | PostgreSQL | 17 ≤ v < 17.12 | CVEProject cvelistV5 (CNA) |
| — | PostgreSQL | 18 ≤ v < 18.7 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-11-12
- Last updated
- 2026-11-13
- State
- Published
- Assigner (CNA)
- PostgreSQL
- Kolun priority
- 25 · Low
Exploit prediction (EPSS)
0.59%
Probability of exploitation in 30 days
48.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-843Access of Resource Using Incompatible Type ('Type Confusion')