What is CVE-2025-54592?

CVE-2025-54592 is a critical-severity vulnerability in Freshrss, classified under Insufficient Session Expiration. CVSS score: 9.8/10. Published 2025-09-29.

How severe is CVE-2025-54592?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Freshrss

CVE-2025-54592

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

Published 2025-09-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Freshrss — versions < 1.27.0

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/FreshRSS/FreshRSS/security/advisories/GHSA-42v4-65f8-5wgr (Exploit, Vendor Advisory)
github.com/FreshRSS/FreshRSS/pull/7762 (Patch)
github.com/FreshRSS/FreshRSS/releases/tag/1.27.0 (Release Notes)

Frequently asked questions

What is CVE-2025-54592?: CVE-2025-54592 is a critical-severity vulnerability in Freshrss, classified under Insufficient Session Expiration. CVSS score: 9.8/10. Published 2025-09-29.
How severe is CVE-2025-54592?: Critical severity. CVSS v3 base score is 9.8 out of 10.