CVE-2026-0562 in parisneo lollmsinfo

Summary

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.

Responsible

@huntr_ai

Reservation

01/01/2026

Disclosure

03/30/2026

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VulDB provides additional information and datapoints for this CVE:

IDVulnerabilityCWEExpCouCVE
354137parisneo lollms respond_request authorization863Not definedOfficial fixCVE-2026-0562

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