Security advisory

{
  "id": "54e86b38f016fb3f79997addcdbd5804a5bbe19257d705f22abec0854607daaf",
  "url": "https://osv.dev/vulnerability/CVE-2021-34825",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-34825",
    "summary": "Quassel through 0.13.1, when --require-ssl is enabled, launches without SSL or TLS support if a usable X.509 certificate is not found on the local system.",
    "evidence": "osv:CVE-2021-34825",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-34825",
      "aliases": [
        "CVE-2021-34825"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/quassel/quassel",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3778a12912369eb5add886bb65ca74e9df841744"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:quassel-irc:quassel:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.13.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.13.1",
            "0.13.0",
            "0.13-rc2",
            "0.13-rc1",
            "0.12.0",
            "0.13-pre",
            "0.12-rc1",
            "0.12-beta1",
            "0.12-pre",
            "0.11.0",
            "0.11-pre",
            "0.10-rc1",
            "0.10-beta1",
            "0.9-rc1",
            "0.10-pre",
            "0.9-beta1",
            "0.8.0",
            "0.9-pre",
            "0.8-rc1",
            "0.8-beta1",
            "0.7-rc1",
            "0.8-pre",
            "0.7-beta1",
            "0.6-rc1",
            "0.7-pre",
            "0.6-beta1",
            "0.5.0",
            "0.5-rc2",
            "0.5-rc1",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.0-pre"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34825.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:07.912098548Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ZFWRN5P2WG23MWMVAEVV3YBHGFJHDSW/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOFTSGJUJHCA3KGQBO6OZXWU7JFKVHMJ/",
        "https://github.com/quassel/quassel/pull/581"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "33"
                  },
                  {
                    "last_affected": "33"
                  },
                  {
                    "introduced": "34"
                  },
                  {
                    "last_affected": "34"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-34825",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381317,
  "published_at": "2021-06-17T14:15:08.233+00:00"
}