Vulnerability Description
A critical security vulnerability in parisneo/lollms versions up to 2.2.0 allows any authenticated user to accept or reject friend requests belonging to other users. The `respond_request()` function in `backend/routers/friends.py` does not implement proper authorization checks, enabling Insecure Direct Object Reference (IDOR) attacks. Specifically, the `/api/friends/requests/{friendship_id}` endpoint fails to verify whether the authenticated user is part of the friendship or the intended recipient of the request. This vulnerability can lead to unauthorized access, privacy violations, and potential social engineering attacks. The issue has been addressed in version 2.2.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lollms | Lollms | <= 2.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/parisneo/lollms/commit/c46297799f8e1e23305373f8350746b905e0e8Patch
- https://huntr.com/bounties/6aab01ca-a138-4a1d-bef9-3bce145359bfExploitIssue TrackingThird Party Advisory
- https://aydinnyunus.github.io/2026/04/18/idor-lollms-friend-request-cve-2026-056
FAQ
What is CVE-2026-0562?
CVE-2026-0562 is a vulnerability with a CVSS score of 8.3 (HIGH). A critical security vulnerability in parisneo/lollms versions up to 2.2.0 allows any authenticated user to accept or reject friend requests belonging to other users. The `respond_request()` function i...
How severe is CVE-2026-0562?
CVE-2026-0562 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-0562?
Check the references section above for vendor advisories and patch information. Affected products include: Lollms Lollms.