{"id":"CVE-2026-29169","summary":"Apache HTTP Server: mod_dav_lock indirect lock crash","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.","aliases":["BIT-apache-2026-29169"],"modified":"2026-10-21T02:56:39.075964328Z","published":"2026-05-04T14:48:29.832Z","related":["ALSA-2026:34109","ALSA-2026:41906","ALSA-2026:42828","SUSE-SU-2026:2103-1","SUSE-SU-2026:2104-1","SUSE-SU-2026:22199-1","SUSE-SU-2026:22209-1","SUSE-SU-2026:2641-1","SUSE-SU-2026:2686-1","openSUSE-SU-2026:10785-1","openSUSE-SU-2026:21115-1"],"database_specific":{"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"}]}],"cna_assigner":"apache"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/httpd","events":[{"introduced":"0"},{"fixed":"1a403c05fc361693100d8e6fb5c57e2de26ccfbd"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"1.2.0"}],"source":"DESCRIPTION"},{"range":[{"introduced":"0"},{"last_affected":"2.4.66"}],"source":"DESCRIPTION"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-29169.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}