CVE-2026-61818: high-severity vulnerability in pgpartman pg_partman
pg_partman SQL injection in undo partition time encoder
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.5epss 0.5%
pg_partman is a PostgreSQL extension that manages partitioned tables by time or ID. Prior to 5.5.0, undo_partition() reads part_config.time_encoder as unrestricted text and interpolates it without identifier quoting into a dynamically executed SELECT statement. A role with partman_user access can store SQL rather than a function name, and the SQL executes with the privileges of the caller that invokes undo_partition(). The function is not part of the default background-worker path, which limits the automatic superuser escalation described by the related create-partition vulnerability, but a privileged caller can still have its available confidentiality, integrity, and availability permissions abused. This issue is fixed in version 5.5.0.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
pgpartman · pg_partmanRelated CVEs — pgpartman pg_partman
In the same product, most dangerous first.
CVE-2026-61781CRITICALpg_partman has privilege escalation through SQL injection in create_partition_time()EPSS 0.8%CVE-2026-61819HIGHpg_partman privilege escalation via SQL injection in when using pg_jobmon and encountering exceptionEPSS 0.7%CVE-2026-61820HIGHpg_partman privilege escalation via SQL injection when inheriting template propertiesEPSS 0.7%CVE-2026-61817HIGHpg_partman privilege escalation via SQL injection in several functions via time decoderEPSS 0.7%CVE-2026-61822MEDIUMpg_partman disable maintenance for all partition setsEPSS 0.5%CVE-2026-61821HIGHpg_partman authorization bypass to move child tables between schemas during retentionEPSS 0.4%