Authorization Bypass in PostgreSQL Affects Multiple Versions from Oracle
CVE-2026-120145

8.8HIGH

Key Information:

Vendor

Oracle
Status
Postgresql
Vendor
CVE Published:
12 November 2026

What is CVE-2026-120145?

The vulnerability in PostgreSQL's logical replication mechanism stems from missing authorization checks, allowing a compromised publisher to execute arbitrary code with the privileges of the operating system user associated with the superuser-owned subscription. This risk is particularly pertinent for subscriptions held by superusers, as an attacker can target system catalogs as replication endpoints. Versions prior to PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected. For more information, visit the official PostgreSQL security page.

Affected Version(s)

PostgreSQL 18 < 18.7

PostgreSQL 17 < 17.12

PostgreSQL 16 < 16.16

References

https://www.postgresql.org/support/security/CVE-2026-120145/

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The PostgreSQL project thanks qian zhang for reporting this problem.
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