CVE-2026-0562

Insecure Direct Object Reference (IDOR) in parisneo/lollms

Published Mar 29, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Lollms
Lollms lollms
CPEs cpe:2.3:a:lollms:lollms:*:*:*:*:*:*:*:*
Vendors & Products Lollms
Lollms lollms
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Parisneo
Parisneo parisneo/lollms
Vendors & Products Parisneo
Parisneo parisneo/lollms
Type Values Removed Values Added
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.
Title Insecure Direct Object Reference (IDOR) in parisneo/lollms
Weaknesses CWE-863
References
Metrics cvssV3_0

{'score': 8.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
@huntr_ai
Published
Updated
Apr 22, 2026, 2:57 PM
Reserved
Jan 1, 2026, 10:48 PM
Status
Modified
Published
Mar 29, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:10 AM