{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "fixed": "1.2.0"
                  }
                ],
                "source": "DESCRIPTION"
              },
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "2.4.66"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1a403c05fc361693100d8e6fb5c57e2de26ccfbd"
            }
          ],
          "repo": "https://github.com/apache/httpd",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "apache",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29169.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "range": [
              {
                "last_affected": "2.4.66"
              }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
          }
        ]
      }
    ]
  },
  "details": "A NULL pointer dereference in mod_dav_lock in Apache HTTP Server 2.4.66 and earlier may allow an attacker to crash the server with a malicious request.mod_dav_lock is not used internally by mod_dav or mod_dav_fs.\n\nThe only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0.\n\nUsers are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.",
  "id": "CVE-2026-29169",
  "modified": "2026-10-21T02:31:00.429103983Z",
  "published": "2026-05-04T14:48:29.832Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/04/20"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/05/05/12"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29169.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29169"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache HTTP Server: mod_dav_lock indirect lock crash"
}