CVE-2025-54592 FreshRSS has Incomplete Session Termination on Logout

High 8.8 Published 29 Sep 2025 Updated 30 Sep 2025

Attackers can hijack user sessions because FreshRSS fails to invalidate session cookies upon logout, allowing unauthorized access to user accounts.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-54592?

CVE-2025-54592 is a high-severity authentication bypass vulnerability in FreshRSS, published on 29 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below do not properly terminate the session during logout. After a user logs out, the session cookie remains active and unchanged. The unchanged cookie could be reused by an attacker if a new session were to be started. This failure to invalidate the session can lead to session hijacking and fixation vulnerabilities. This issue is fixed in version 1.27.0

Weakness: CWE-613

Which versions are affected by CVE-2025-54592?

It affects 1 product.

Products include Freshrss Freshrss.

How do I fix CVE-2025-54592?

No fix has been published for CVE-2025-54592 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-54592 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54592 exists.

Sources

Also known as GHSA-42v4-65f8-5wgr.