CVE Explorer
CVE-2026-29169
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.
The only known use-case for mod_dav_lock was mod_dav_svn from Apache Subversion earlier than version 1.2.0.
Users are recommended to upgrade to version 2.4.66, which fixes this issue, or remove mod_dav_lock.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Apache HTTP Server","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"2.4.66","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/05/04/20"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/adp/1/references/0
{"url":"http://www.openwall.com/lists/oss-security/2026/05/05/12"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/adp/1/references/1
{"tags":["vendor-advisory"],"url":"https://httpd.apache.org/security/vulnerabilities_24.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:399d479d53a2f9875c5fb81d657fe30df7a6ec88b183beadfda20c67c9bc8df2 · sha256:a8892d79cb200cac… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.