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OpenAdvisories
Critical · 9.1 CVE-2026-42535 EUVD-2026-35090GHSA-644r-w2gh-w38h

Apache HTTP Server: mod_dav_fs protected directory access

Published Jun 8, 2026 · Updated Jun 9, 2026 · Assigned by apache

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.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache HTTP Server ≤ 2.4.67 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 apache2 2.4.68-1 —
Debian 13 apache2 2.4.68-1~deb13u1 —
Debian 12 apache2 2.4.68-1~deb12u1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS apache2 2.4.66-2ubuntu2.4 USN-8516-1
Ubuntu 25.10 apache2 No fix yet —
Ubuntu 24.04 LTS apache2 2.4.58-1ubuntu8.15 USN-8516-1
Ubuntu 22.04 LTS apache2 2.4.52-1ubuntu4.23 USN-8516-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 20.04 LTS apache2 2.4.41-4ubuntu3.23+esm5 USN-8571-1
Ubuntu Pro 18.04 LTS apache2 2.4.29-1ubuntu4.27+esm10 USN-8571-1
Ubuntu Pro 16.04 LTS apache2 2.4.18-2ubuntu3.17+esm19 USN-8571-1
Ubuntu Pro 14.04 LTS apache2 2.4.7-1ubuntu4.22+esm14 USN-8571-1
ReleasePackageFixed inAdvisory
RHEL 10 httpd +8 2.4.63-13.el10_2.4 RHSA-2026:34109
RHEL 10 mod_ssl +1 1:2.4.63-13.el10_2.4 RHSA-2026:34109
RHEL 9 httpd +8 2.4.62-13.el9_8.5 RHSA-2026:41906
RHEL 9 mod_ssl +1 1:2.4.62-13.el9_8.5 RHSA-2026:41906
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat JBoss Core Services 1 jbcs-httpd24-httpd +6 2.4.62-16.el8jbcs RHSA-2026:56868
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_http2 2.0.29-13.el8jbcs RHSA-2026:56868
Red Hat JBoss Core Services 1 jbcs-httpd24-mod_ssl +1 1:2.4.62-16.el8jbcs RHSA-2026:56868
Red Hat Hardened Images 1 httpd +5 2.4.68-1.hum1 RHSA-2026:25042

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 httpd +8 2.4.63-13.el10_2.4 ALSA-2026:34109
AlmaLinux 10 mod_ssl +1 1:2.4.63-13.el10_2.4 ALSA-2026:34109
AlmaLinux 9 httpd +8 2.4.62-13.el9_8.5 ALSA-2026:41906
AlmaLinux 9 mod_ssl +1 1:2.4.62-13.el9_8.5 ALSA-2026:41906

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 httpd 2.4.62-13.el9_8.5 RLSA-2026:41906
ReleasePackageFixed inAdvisory
SLES 15 SP7 apache2 +6 2.4.66-150700.4.23.1 SUSE-SU-2026:2759-1
SLES 15 SP6 apache2 +5 2.4.66-150600.5.55.1 SUSE-SU-2026:2735-1
SLES 15 SP5 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
SLES 15 SP4 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
SLES 12 SP5 apache2 +1 2.4.66-35.81.1 SUSE-SU-2026:2717-1
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 apache2 +6 2.4.66-160000.3.1 SUSE-SU-2026:22564-1
SLES for SAP 15 SP6 apache2 +5 2.4.66-150600.5.55.1 SUSE-SU-2026:2735-1
SLES for SAP 15 SP5 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
SLES for SAP 15 SP4 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
SLES 16.0 apache2 +6 2.4.66-160000.3.1 SUSE-SU-2026:22564-1
SLE HPC 15 SP5 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
SLE HPC 15 SP4 apache2 2.4.66-150400.6.57.1 SUSE-SU-2026:2686-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 apache2 +6 2.4.66-160000.3.1 openSUSE-SU-2026:21235-1
ReleasePackageFixed inAdvisory
Alpine v3.24 apache2 2.4.68-r0 —
Alpine v3.23 apache2 2.4.68-r0 —
Alpine v3.22 apache2 2.4.68-r0 —
Alpine v3.21 apache2 2.4.68-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 httpd +8 2.4.68-1.amzn2023.0.1 ALAS2023-2026-1880
Amazon Linux 2023 mod_ssl +1 1:2.4.68-1.amzn2023.0.1 ALAS2023-2026-1880
Amazon Linux 2 httpd +7 2.4.68-1.amzn2.0.1 ALAS2-2026-3379
Amazon Linux 2 mod_ssl +1 1:2.4.68-1.amzn2.0.1 ALAS2-2026-3379

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 httpd 2.4.68-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 httpd +8 2.4.62-13.0.1.el9_8.5 ELSA-2026-41906
Oracle Linux 9 mod_ssl +1 1:2.4.62-13.0.1.el9_8.5 ELSA-2026-41906

Advisories 21

References