CVE-2026-61820
- Source
- https://cve.org/CVERecord?id=CVE-2026-61820
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61820.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-61820
- Aliases
-
- GHSA-xqxh-6hh3-974m
- Downstream
- Published
- 2026-09-18T19:49:10Z
- Modified
- 2026-09-20T11:46:54Z
- Severity
-
- 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- pg_partman privilege escalation via SQL injection when inheriting template properties
- Details
-
pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, inherit_template_properties() manually surrounds primary-key column names from pg_attribute.attname with double quotes without escaping embedded double-quote characters. A partman_user who owns a template table can create a crafted column name that breaks out of the generated ALTER TABLE ADD PRIMARY KEY identifier when the background worker applies the key to a child partition. The generated SQL then executes with pg_partman_bgw.role privileges, which default to PostgreSQL superuser, permitting database-wide compromise and operating-system command execution as the PostgreSQL service account. The crafted catalog identifier persists until removed and can trigger again during later partition creation. This issue is fixed in version 5.5.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-89" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61820.json" }- References
-
- https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61820.json
- https://github.com/pgpartman/pg_partman/security/advisories/GHSA-xqxh-6hh3-974m
- https://nvd.nist.gov/vuln/detail/CVE-2026-61820
- https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361