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CVE-2026-42535: Apache HTTP Server: mod_dav_fs protected directory access

From: Eric Covener <covener () apache org>
Date: Mon, 08 Jun 2026 12:50:31 +0000

Severity: moderate 

Affected versions:

- Apache HTTP Server through 2.4.67

Description:

A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly manipulate 
trusted DAV property databases, potentially causing child process crashes.

Users are recommended to upgrade to version 2.4.68, which fixes this issue.

Credit:

Zhenpeng (Leo) Lin at depthfirst (finder)

References:

https://httpd.apache.org/security/vulnerabilities_24.html
https://httpd.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-42535

Timeline:

2026-04-27: Report received
2026-06-05: fixed in 2.4.x by r1935013
2026-06-08: 2.4.68 released

Current thread:

CVE-2026-42535: Apache HTTP Server: mod_dav_fs protected directory access Eric Covener (Jun 08)