---
title: "CVE-2026-61821: pg_partman - Broken Access Control"
description: "pg_partman prior to 5.5.0 contains a broken access control vulnerability caused by improper schema privilege checks in drop_partition_id() and drop_partition_time(), letting roles with partman_user access relocate child tables between schemas without proper authorization, exploit requires partman_user role access."
url: https://panop.io/threat-heartbeat/CVE-2026-61821/
---

# CVE-2026-61821 pg\_partman - Broken Access Control

pg\_partman prior to 5.5.0 contains a broken access control vulnerability caused by improper schema privilege checks in drop\_partition\_id() and drop\_partition\_time(), letting roles with partman\_user access relocate child tables between schemas without proper authorization, exploit requires partman\_user role access.

CVSS base score 8.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.38% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-61821)

## Details

Type

Broken Access Control

Impact

Broken Access Control

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-61821](https://nvd.nist.gov/vuln/detail/CVE-2026-61821)
- [https://github.com/pgpartman/pg\_partman/commit/ba9405542acf24dd881845b935cab8b165854361](https://github.com/pgpartman/pg_partman/commit/ba9405542acf24dd881845b935cab8b165854361)
- [https://github.com/pgpartman/pg\_partman/releases/tag/v5.5.0](https://github.com/pgpartman/pg_partman/releases/tag/v5.5.0)
- [https://github.com/pgpartman/pg\_partman/security/advisories/GHSA-pxp2-x8cf-rfhc](https://github.com/pgpartman/pg_partman/security/advisories/GHSA-pxp2-x8cf-rfhc)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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