CVE-2026-79617 Improper Access Control Leading to Display Exposure in TÜBİTAK BİLGEM's Pardus LightDM Greeter

High 7.1 Published Updated

An attacker can exploit incorrect permission assignments in the Pardus LightDM Greeter to expose sensitive display information.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-79617?

CVE-2026-79617 is a high-severity missing authorization vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute Pardus LightDM Greeter, published on 9 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Incorrect Permission Assignment for Critical Resource vulnerability in TÜBİTAK BİLGEM Software Technologies Research Institute Pardus LightDM Greeter allows Exploiting Incorrectly Configured Access Control Security Levels.

This issue affects Pardus LightDM Greeter: before 0.4.15.

Weakness: CWE-732

Which versions are affected by CVE-2026-79617?

How do I fix CVE-2026-79617?

No fix has been published for CVE-2026-79617 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-79617 being exploited?

There is no known exploitation of CVE-2026-79617 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-3584-rwvv-wp47.

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