Security advisory

{
  "id": "c3b92fcc0f07528f13129934c7741995321352c7e7a565354f3bd09baa2869f0",
  "url": "https://osv.dev/vulnerability/CVE-2021-27229",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-27229",
    "summary": "Mumble before 1.3.4 allows remote code execution if a victim navigates to a crafted URL on a server list and clicks on the Open Webpage text.",
    "evidence": "osv:CVE-2021-27229",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-27229",
      "aliases": [
        "CVE-2021-27229"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mumble-voip/mumble",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c0b5be7134673fa1c4c434b72552c200bca37b8d"
                },
                {
                  "fixed": "e59ee87abe249f345908c7d568f6879d16bfd648"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mumble:mumble:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e59ee87abe249f345908c7d568f6879d16bfd648"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.3",
            "1.3.2",
            "1.3.1",
            "1.3.1-rc1",
            "1.3.0",
            "1.3.0-rc2",
            "1.3.0-rc1",
            "1.2.4",
            "1.2.4-rc1",
            "1.2.4-beta1",
            "1.2.3",
            "1.2.3-rc3",
            "1.2.3-rc2",
            "1.2.3-rc1",
            "1.2.2",
            "1.2.1",
            "1.2.0",
            "1.2.0beta2",
            "1.2.0beta1",
            "1.1.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27229.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-27229-43ff6295",
                "digest": {
                  "length": 235,
                  "function_hash": "65394302460783050181570692291240513141"
                },
                "source": "https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648",
                "target": {
                  "file": "src/mumble/ConnectDialog.cpp",
                  "function": "ConnectDialog::on_qaUrl_triggered"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-27229-9598d386",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "70232847151359564456171497302430397879",
                    "118246664800755243633469300694518903283",
                    "204380696076314686599292659447017158641",
                    "4568989370343213662826175788362273508",
                    "99591226523144294550551577742778135793",
                    "138481416414352192922181994546856922670",
                    "224021822537927809128536996686578903981"
                  ]
                },
                "source": "https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648",
                "target": {
                  "file": "src/mumble/ConnectDialog.cpp"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:17:33Z"
          }
        }
      ],
      "modified": "2026-10-20T14:17:33.643671969Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2021/02/msg00022.html",
        "https://security.gentoo.org/glsa/202105-13",
        "https://github.com/mumble-voip/mumble/commit/e59ee87abe249f345908c7d568f6879d16bfd648",
        "https://github.com/mumble-voip/mumble/compare/1.3.3...1.3.4",
        "https://github.com/mumble-voip/mumble/pull/4733"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-27229",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388791,
  "published_at": "2021-02-16T04:15:12.733+00:00"
}