Quick answers
- Is CVE-2026-120147 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-120147 being exploited in the wild.
- How severe is CVE-2026-120147?
- High severity, with a CVSS score of 8.8, published 12 November 2026.
- Which products and versions are affected?
- PostgreSQL before 14.25, 15.20, 16.16, 17.12, 18.7.
- Is there a fix for CVE-2026-120147?
- Yes: fixed in PostgreSQL 14.25, 15.20, 16.16, 17.12, 18.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-120147 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-120147?
- Check whether you run PostgreSQL at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: PostgreSQL 14.25, 15.20, 16.16, 17.12, 18.7
Technical details
The vulnerability is a use-after-free flaw in the PostgreSQL dblink contrib module's type conversion code. An authenticated attacker with object creator privileges can trigger reentrancy where type conversion closes a connection while an outer dblink operation is still consuming its results, causing memory corruption and arbitrary code execution as the database OS user. Network access and prior authentication required; no user interaction needed.
Affected products
- PostgreSQL PostgreSQL before 14.25, 15.20, 16.16, 17.12, 18.7
Timeline
- 2026-11-12: disclosed
- 2026-11-12: patched