Improper Authorization in danny-avila/librechat

{
  "id": "144f460c7f7ab710859acecb792414af831abef97b520e3a4c46ea5b7b7f8ac9",
  "url": "https://osv.dev/vulnerability/CVE-2025-6088",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Improper Authorization in danny-avila/librechat",
    "summary": "In version 0.7.8 of danny-avila/librechat, improper authorization controls in the conversation sharing feature allow unauthorized access to other users' conversations if the conversation ID is known. Although UUIDv4 conversation IDs are generated server-side and are difficult to brute force, they can be obtained from less-protected sources such as server-side access logs, browser history, or screenshots. The vulnerability permits a logged-in user to gain read-only access to another user's conversations by exploiting the `/api/share/conversationID` endpoint, which lacks authorization checks. This issue is resolved in version v0.7.9-rc1.",
    "evidence": "osv:CVE-2025-6088",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-6088",
      "aliases": [
        "CVE-2025-6088"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/LibreChat-AI/LibreChat",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9c70d1db969949a5f2f427f447899151e7055638"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "v0.7.9-rc1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "SplitRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3af2666890bbf291cb7b9f3e03592d54714f0ff5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.7.8-NA",
            "0.7.8-rc1",
            "v0.7.8",
            "v0.7.8-rc1",
            "v0.7.7",
            "v0.7.7-rc1",
            "v0.7.6",
            "v0.7.6-rc1",
            "v0.7.5",
            "v0.7.5-rc2",
            "v0.7.5-rc1",
            "v0.7.4",
            "v0.7.4-rc1",
            "v0.7.3",
            "v0.7.3-rc2",
            "v0.7.3-rc",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.10",
            "v0.6.9",
            "v0.6.6",
            "v0.6.5",
            "v0.6.1",
            "v0.6.0",
            "v0.5.9",
            "v0.5.8",
            "v0.5.7",
            "v0.5.6",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.8",
            "v0.4.7",
            "v0.4.6",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.3",
            "v0.3.0",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.6",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6088.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.503384807Z",
      "provider": "osv",
      "references": [
        "https://huntr.com/bounties/361405bb-a739-41eb-a680-4cb6193e7c76",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6088.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-6088",
        "https://github.com/danny-avila/librechat/commit/3af2666890bbf291cb7b9f3e03592d54714f0ff5"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-285"
        ],
        "cna_assigner": "@huntr_ai",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6088.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-6088",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507096,
  "published_at": "2025-09-11T00:43:51.699+00:00"
}