Vulnerability-Lookup

GHSA-2J48-MFM5-X2HV

Vulnerability from github – Published: 2026-03-29 18:30 – Updated: 2026-04-22 18:31

Details

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.

Severity ?

8.3 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2026-0562"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-29T18:16:14Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-2j48-mfm5-x2hv",
  "modified": "2026-04-22T18:31:37Z",
  "published": "2026-03-29T18:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0562"
    },
    {
      "type": "WEB",
      "url": "https://github.com/parisneo/lollms/commit/c46297799f8e1e23305373f8350746b905e0e83c"
    },
    {
      "type": "WEB",
      "url": "https://aydinnyunus.github.io/2026/04/18/idor-lollms-friend-request-cve-2026-0562"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/6aab01ca-a138-4a1d-bef9-3bce145359bf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-0562 (GCVE-0-2026-0562)

Vulnerability from cvelistv5 – Published: 2026-03-29 17:49 – Updated: 2026-04-22 14:57

Title

Insecure Direct Object Reference (IDOR) in parisneo/lollms

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.

Severity ?

8.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

CWE

CWE-863 - Incorrect Authorization

Assigner

@huntr_ai

References

URL

Tags

	https://huntr.com/bounties/6aab01ca-a138-4a1d-bef…
	https://github.com/parisneo/lollms/commit/c462977…

Impacted products

	Vendor	Product	Version
	parisneo	parisneo/lollms	Affected: unspecified , < 2.2.0 (custom)

Show details on NVD website

JSON

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              "content": {
                "id": "CVE-2026-0562",
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          "versions": [
            {
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      "metrics": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-2J48-MFM5-X2HV

CVE-2026-0562 (GCVE-0-2026-0562)

Tags

Sightings

Nomenclature