CVE-2026-116311 PUBLISHED

PostgreSQL DROP OWNED can remove restrictive row security policies from non-owned tables

Assigner: PostgreSQL
Reserved: 26.10.2026 Published: 12.11.2026 Updated: 12.11.2026

Missing authorization in PostgreSQL DROP OWNED allows a role to remove itself from restrictive row level security policies, thereby reading or modifying rows that the policy was intended to deny, via queries after the DROP OWNED. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 5.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	n/a
Product	PostgreSQL
Versions	Default: unaffected affected from 18 to 18.7 (excl.) affected from 17 to 17.12 (excl.) affected from 16 to 16.16 (excl.) affected from 15 to 15.20 (excl.) affected from 0 to 14.25 (excl.)

Affected Configurations

a restrictive row level security policy on a non-attacker-owned table applies to the attacker

Credits

The PostgreSQL project thanks Zsolt Parragi and Anthropic OSS program for reporting this problem.

References

https://www.postgresql.org/support/security/CVE-2026-116311/

Problem Types

Missing Authorization CWE