CVE-2026-61818 pg_partman - Command Injection

pg_partman < 5.5.0 contains a command injection caused by unquoted interpolation of part_config.time_encoder in undo_partition(), letting roles with partman_user access execute arbitrary SQL with caller privileges, exploit requires partman_user role.

CVSS base score 8.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.51% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Data Tampering, Information Disclosure, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-89

Vendor fix

Upgrade to version 5.5.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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