CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NCVE-2026-120146 PostgreSQL REASSIGN OWNED bypasses role SET and CREATEDB checks
Medium (4.3). EPSS 0.3% estimated probability of exploitation activity in the next 30 days.
On this page
Missing authorization in PostgreSQL REASSIGN OWNED allows a role granted INHERIT but not SET to transfer objects to the granted role. It also allows reassignment of database ownership without the CREATEDB privilege. The equivalent ALTER ... OWNER commands block this. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
Severity
- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 17th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-862 Missing Authorization
- OWASP Top 10
- A01:2025 Broken Access Control
- Published
- Modified
- Assigned by
- PostgreSQL (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Fix and patched versions
- Debian, Red Hat, Alpine: fixed package versions per release
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12 | postgresql-15 | no fix listed | DEBIAN-CVE-2026-120146 |
| Debian | 13 | postgresql-17 | 17.12-0+deb13u1 | DEBIAN-CVE-2026-120146 |
| Debian | 14 | postgresql-18 | no fix listed | DEBIAN-CVE-2026-120146 |
| Ubuntu | 20.04:LTS | postgresql-12 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | 22.04:LTS | postgresql-14 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | 24.04:LTS | postgresql-16 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | 26.04:LTS, 26.10 | postgresql-18 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | Pro:14.04:LTS | postgresql-9.3 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | Pro:16.04:LTS | postgresql-9.5 | no fix listed | UBUNTU-CVE-2026-120146 |
| Ubuntu | Pro:18.04:LTS | postgresql-10 | no fix listed | UBUNTU-CVE-2026-120146 |
| Red Hat | hummingbird:1 | libpq, libpq-devel | 0:18.7-0.1.hum1 | RHSA-2026:99821 |
| Alpine | v3.21, v3.22 | postgresql15 | 15.20-r0 | ALPINE-CVE-2026-120146 |
| Alpine | v3.21, v3.22, v3.23 and 1 more | postgresql16 | 16.16-r0 | ALPINE-CVE-2026-120146 |
| Alpine | v3.21, v3.22, v3.23 and 1 more | postgresql17 | 17.12-r0 | ALPINE-CVE-2026-120146 |
| Alpine | v3.23, v3.24 | postgresql18 | 18.7-r0 | ALPINE-CVE-2026-120146 |
| Azure Linux | 3 | postgresql | no fix listed | AZL-113762 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Red Hat Security Data © Red Hat, Inc., CC BY 4.0; the Alpine secdb, CC BY-SA 4.0; Microsoft's Azure Linux vulnerability data, MIT. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu · Red Hat · Alpine.
Red Hat
Red Hat rates this Moderate.
This vulnerability is rated as Moderate because exploitation requires authenticated database credentials with specific role inheritance privileges, limiting the blast radius to database-internal object ownership without allowing host-level privilege escalation or arbitrary code execution. Under default Red Hat enterprise deployments, database access is restricted to authenticated roles and network access is controlled. Although an authenticated user can bypass intended ownership assignment checks via the reassignment command, the flaw does not directly compromise confidentiality or database availability.
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Hardened Images | libpq | Affected | |
| Red Hat Hardened Images | postgresql17 | Affected | |
| Red Hat Hardened Images | postgresql18 | Affected |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-120146.
Attack patterns (CAPEC)
- CAPEC-665 Exploitation of Thunderbolt Protection Flaws Likelihood: Low · Severity: Very High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.