A room with itself as a its predecessor will freeze matrix-js-sdk

{
  "id": "949bcfca689140c08be7095d6d77f9d5646be185a3f52fee372a5397648b4271",
  "url": "https://osv.dev/vulnerability/CVE-2024-42369",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "A room with itself as a its predecessor will freeze matrix-js-sdk",
    "summary": "matrix-js-sdk is a Matrix messaging protocol Client-Server SDK for JavaScript. A malicious homeserver can craft a room or room structure such that the predecessors form a cycle. The matrix-js-sdk's getRoomUpgradeHistory function will infinitely recurse in this case, causing the code to hang. This method is public but also called by the 'leaveRoomChain()' method, so leaving a room will also trigger the bug. This was patched in matrix-js-sdk 34.3.1.",
    "evidence": "osv:CVE-2024-42369",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-42369",
      "aliases": [
        "CVE-2024-42369",
        "GHSA-vhr5-g3pm-49fm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/matrix-org/matrix-js-sdk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "340bbe1a8fae05a514ac133e6e9b549326854957"
                },
                {
                  "fixed": "a0efed8b881b3db6c9f2c71d6a6e74c2828978c6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:matrix:javascript_sdk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "34.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a0efed8b881b3db6c9f2c71d6a6e74c2828978c6"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v34.3.0",
            "v34.3.0-rc.1",
            "v34.3.0-rc.0",
            "v34.2.0",
            "v31.2.0-rc.0",
            "v30.2.0-rc.0",
            "v30.1.0-rc.0",
            "v30.1.0-rc.1",
            "v26.2.0-no-media-devices-hotfix",
            "no-media-devices-release",
            "v26.1.0-patch.1",
            "v8.1.0",
            "v8.1.0-rc.1",
            "v8.0.0",
            "v7.1.0",
            "v7.1.0-rc.1",
            "v5.0.1",
            "v2.4.1",
            "v2.0.1",
            "v2.0.1-rc.2",
            "v2.0.1-rc.1",
            "v1.0.0",
            "v1.0.0-rc.2",
            "v1.0.0-rc.1",
            "v0.11.0",
            "v0.11.0-rc.1",
            "v0.10.7",
            "v0.10.7-rc.1",
            "v0.10.5",
            "v0.10.5-rc.1",
            "v0.10.3",
            "v0.10.2",
            "v0.10.3-rc.1",
            "v0.10.2-rc.1",
            "v0.8.3",
            "v0.8.3-rc.1",
            "v0.8.2",
            "v0.8.1",
            "v0.8.1-rc.1",
            "v0.8.0",
            "v0.7.10",
            "v0.7.9",
            "v0.7.4",
            "v0.7.4-rc.1",
            "v0.7.2",
            "v0.7.1-rc.1",
            "v0.6.4",
            "v0.6.4-rc.2",
            "v0.6.2",
            "v0.6.1",
            "v0.6.0-rc2",
            "v0.6.0-rc1",
            "v0.5.6",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.2",
            "v0.4.1",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42369.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.703177225Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42369.json",
        "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-vhr5-g3pm-49fm",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-42369",
        "https://github.com/matrix-org/matrix-js-sdk/commit/a0efed8b881b3db6c9f2c71d6a6e74c2828978c6"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-674"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42369.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-42369",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496578,
  "published_at": "2024-08-20T14:37:19.226+00:00"
}