CVE-2026-116309
PostgreSQL plperl blessed-reference type confusion may execute arbitrary code
Type confusion in PostgreSQL plperl may allow an object creator to execute arbitrary code, via blessing a non-hash reference into PostgreSQL::InServer::ARRAY. We have not confirmed or ruled out a way to control the pointer sufficiently to achieve security impact, but we are proceeding as though that is possible. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| PostgreSQL n/a |
≥ 18; < 18.7 (affected, rpm) ≥ 17; < 17.12 (affected, rpm) ≥ 16; < 16.16 (affected, rpm) ≥ 15; < 15.20 (affected, rpm) ≥ 0; < 14.25 (affected, rpm) Other versions: unaffected |
CNA: PostgreSQL |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.8 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CNA: PostgreSQL |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://www.postgresql.org/support/security/CVE-2026-116309/CNA: PostgreSQL
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