Security advisory

{
  "id": "8a078d4adee3a056bb5fc489f1fc2f6203ad1320779fe40229e1cebf0fc37a33",
  "url": "https://osv.dev/vulnerability/CVE-2024-45192",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2024-45192",
    "summary": "An issue was discovered in Matrix libolm through 3.2.16. Cache-timing attacks can occur due to use of base64 when decoding group session keys. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.",
    "evidence": "osv:CVE-2024-45192",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-45192",
      "aliases": [
        "CVE-2024-45192"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.matrix.org/matrix-org/olm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6d4b5b07887821a95b144091c8497d09d377f985"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:matrix:olm:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.2.16"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6d4b5b07887821a95b144091c8497d09d377f985"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.2.16",
            "3.2.15",
            "3.2.14",
            "3.2.13",
            "3.2.12",
            "3.2.11",
            "3.2.10",
            "3.2.9",
            "3.2.8",
            "3.2.7",
            "3.2.6",
            "3.2.5",
            "3.2.4",
            "3.2.3",
            "3.2.2",
            "3.2.1",
            "3.2.0",
            "3.1.5",
            "3.1.4",
            "3.1.3",
            "3.1.2",
            "3.1.1",
            "3.1.0",
            "3.0.0",
            "2.3.0",
            "2.2.2",
            "2.2.1",
            "2.2.0",
            "2.1.0",
            "1.3.0",
            "1.1.0",
            "1.0.0",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45192.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.471690435Z",
      "provider": "osv",
      "references": [
        "https://news.ycombinator.com/item?id=41249371",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45192.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-45192",
        "https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985",
        "https://gitlab.matrix.org/matrix-org/olm/",
        "https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45192.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-45192",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492825,
  "published_at": "2024-08-22T00:00:00+00:00"
}