{"id":"CVE-2026-61820","state":"PUBLISHED","title":"pg_partman privilege escalation via SQL injection when inheriting template properties","description":"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.","publishedAt":"2026-09-18T19:49:10.983Z","updatedAt":"2026-09-22T15:39:45.442Z","severity":{"score":8.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["pgpartman pg_partman"],"affected":[{"vendor":"pgpartman","product":"pg_partman","versions":[{"version":"< 5.5.0","status":"affected"}]}],"references":["https://github.com/pgpartman/pg_partman/security/advisories/GHSA-xqxh-6hh3-974m","https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0"],"weaknesses":["CWE-89"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/61xxx/CVE-2026-61820.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61820","state":"PUBLISHED","datePublished":"2026-09-18T19:49:10.983Z","dateUpdated":"2026-09-22T15:39:45.442Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-10T20:17:57.992Z"},"containers":{"cna":{"title":"pg_partman privilege escalation via SQL injection when inheriting template properties","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"pgpartman","product":"pg_partman","versions":[{"version":"< 5.5.0","status":"affected"}]}],"references":[{"url":"https://github.com/pgpartman/pg_partman/security/advisories/GHSA-xqxh-6hh3-974m","name":"https://github.com/pgpartman/pg_partman/security/advisories/GHSA-xqxh-6hh3-974m","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","name":"https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361","tags":["x_refsource_MISC"]},{"url":"https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0","name":"https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-89","lang":"en","description":"CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-18T19:49:10.983Z"},"source":{"advisory":"GHSA-xqxh-6hh3-974m","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T15:39:28.982624Z","id":"CVE-2026-61820","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T15:39:45.442Z"}}]}}}