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

Published Jun 8, 2026
·
Updated

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

Affected Software

4 affected componentsFixes available
Apache HTTP Server<=2.4.67
Apache HTTP Server<2.4.68
Microsoft azl3 httpd 2.4.67-1
debian/apache2<=2.4.62-1~deb11u1, <=2.4.67-1~deb12u3, <=2.4.67-1~deb13u3
2.4.67-1~deb11u32.4.68-1~deb12u12.4.68-1~deb13u12.4.68-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/apache2 to a version that resolves this vulnerability.

    Fixed in 2.4.67-1~deb11u3Fixed in 2.4.68-1~deb12u1Fixed in 2.4.68-1~deb13u1Fixed in 2.4.68-1
  2. Upgrade

    Upgrade Apache HTTP Server (mod_dav_fs) to a version that resolves this vulnerability.

    Fixed in 2.4.68Patch CVE-2026-42535

Event History

Jun 8, 2026
CVE Published
via MITRE·03:14 PM
Data Sourced
via MITRE·03:14 PM
DescriptionWeakness
Data Sourced
via Red Hat·04:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Jun 11, 2026
Data Sourced
via Microsoft·08:02 AM
DescriptionSeverityWeaknessAffected Software
Jul 8, 2026
Data Sourced
via Launchpad·03:47 PM
Description
Jul 20, 2026
Data Sourced
via Debian·10:12 PM
DescriptionAffected Software
Jul 21, 2026
Data Sourced
via Ubuntu·10:11 PM
RemedyDescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-42535?

CVE-2026-42535 has a risk rating of 23.

2

How do I fix CVE-2026-42535?

To fix CVE-2026-42535, upgrade your Apache HTTP Server to version 2.4.68 or later.

3

What versions of Apache are affected by CVE-2026-42535?

CVE-2026-42535 affects Apache HTTP Server version 2.4.67 and earlier.

4

What are the potential consequences of CVE-2026-42535?

The potential consequences of CVE-2026-42535 include the possibility of child process crashes due to manipulated trusted DAV property databases.

5

Who should be concerned about CVE-2026-42535?

WebDAV content authors and administrators using affected versions of Apache HTTP Server should be concerned about CVE-2026-42535.

Company

Resources

Contact

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