USN-8762-1: polkit vulnerability

Publication date

15 September 2026

Overview

polkit could be made to crash or run programs as an administrator.


Packages

  • policykit-1 - framework for managing administrative policies and privileges

Details

It was discovered that polkit incorrectly handled cookie input.
A local
attacker could possibly use this issue to cause polkit
to crash, resulting
in a denial of service, or execute arbitrary code.

It was discovered that polkit incorrectly handled cookie input.
A local
attacker could possibly use this issue to cause polkit
to crash, resulting
in a denial of service, or execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute polkitd –  127-2ubuntu1.1
24.04 LTS noble policykit-1 –  124-2ubuntu1.24.04.4
22.04 LTS jammy policykit-1 –  0.105-33ubuntu0.2

Reduce your security exposure

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Have additional questions?

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