Fixes the following security issues:
*) SECURITY: CVE-2026-49975: mod_http2 denial of service
(cve.mitre.org)
Memory Allocation with Excessive Size Value vulnerability in
Apache HTTP Server's mod_http leads to denial of service via
malicious HTTP requests.
This issue affects Apache HTTP Server: from 2.4.17 through
2.4.67.
Credits: Quang Luong of Calif.IO in collaboration with OpenAI
Codex
*) SECURITY: CVE-2026-48913: mod_http2 memory corruption when file
handles exhausted (cve.mitre.org)
Use After Free vulnerability in Apache HTTP Server module
mod_http2 when file handles are already exhausted.
This issue affects Apache HTTP Server: from 2.4.55 through
2.4.67.
Credits: Sam Lovejoy, IBM X-Force Offensive Research (XOR)
*) SECURITY: CVE-2026-44631: Heap Underflow in `ap_regname` via
Signed Char Overflow (cve.mitre.org)
Buffer Underwrite vulnerability in Apache HTTP Server on crafted
regular expressions in the configuration.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-44186: Loop in `proxy_ftp_handler` in
mod_proxy_ftp (cve.mitre.org)
Loop with Unreachable Exit Condition ('Infinite Loop')
vulnerability in the mod_proxy_ftp module in Apache HTTP Server
with an attacker controlled backend FTP server.
This issue affects undefined: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-44185: Stack Buffer Over-Read in mod_ssl OCSP
`send_request` (cve.mitre.org)
Buffer Over-read vulnerability in Apache HTTP Server via
outbound OCSP requests to an attacker controlled OCSP server
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-44119: escalation of privilege through
expressions in .htaccess in multiple modules (cve.mitre.org)
Improper Privilege Management vulnerability in Apache HTTP
Server 2.4.67 and earlier allows local .htaccess authors to read
files with the privileges of the httpd user.
This issue affects Apache HTTP Server: from through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Lucian Nitescu
*) SECURITY: CVE-2026-43951: OOB Read in `merge_response_headers`
can cause crash (cve.mitre.org)
Out-of-bounds Read vulnerability in Apache HTTP Server with
mod_headers and mod_mime and multiple response languages.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-42536: mod_xml2enc heap overflow
(cve.mitre.org)
Heap-based Buffer Overflow vulnerability in Apache HTTP Server
with mod_xml2enc, xml2StartParse, and untrusted content
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-42535: mod_dav_fs protected directory access
(cve.mitre.org)
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.
Credits: Zhenpeng (Leo) Lin at depthfirst
*) SECURITY: CVE-2026-34356: ProxyPassReverseCookieMap buffer
overflow (cve.mitre.org)
Heap-based Buffer Overflow vulnerability in Apache HTTP Server
with malicious backend servers and ProxyPassReverseCookie*
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Arkadi Vainbrand
*) SECURITY: CVE-2026-34355: mod_proxy_html buffer overflow
(cve.mitre.org)
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67
and earlier allows an attack by an untrusted backend.
Users are recommended to upgrade to version 2.4.68, which fixes
this issue.
Credits: Elhanan Haenel
*) SECURITY: CVE-2026-29170: mod_proxy_ftp XSS (cve.mitre.org)
A cross-site scripting vulnerability exists in mod_proxy_ftp's
HTML directory list generation in Apache HTTP Server 2.4.67 and
earlier when listing FTP directory contents either via forward
or reverse proxy configuration.
Users are recommended to upgrade to version 2.4.68, which fixes
this issue.
Credits: Pavel Kohout, Aisle Research, Aisle.com
*) SECURITY: CVE-2026-29167: mod_ldap per-dir use-after-free
(cve.mitre.org)
Use After Free vulnerability in Apache HTTP Server with mod_ldap
in per-directory configuration
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.
Users are recommended to upgrade to version 2.4.68, which fixes
the issue.
Credits: Pavel Kohout, Aisle Research, Aisle.com
For more details, see the CHANGES file:
https://downloads.apache.org/httpd/CHANGES_2.4.68
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Fixes the following security issues:
*) SECURITY: CVE-2021-44790: Possible buffer overflow when parsing
multipart content in mod_lua of Apache HTTP Server 2.4.51 and
earlier (cve.mitre.org)
A carefully crafted request body can cause a buffer overflow in
the mod_lua multipart parser (r:parsebody() called from Lua
scripts).
The Apache httpd team is not aware of an exploit for the
vulnerabilty though it might be possible to craft one.
This issue affects Apache HTTP Server 2.4.51 and earlier.
Credits: Chamal
*) SECURITY: CVE-2021-44224: Possible NULL dereference or SSRF in
forward proxy configurations in Apache HTTP Server 2.4.51 and
earlier (cve.mitre.org)
A crafted URI sent to httpd configured as a forward proxy
(ProxyRequests on) can cause a crash (NULL pointer dereference)
or, for configurations mixing forward and reverse proxy
declarations, can allow for requests to be directed to a
declared Unix Domain Socket endpoint (Server Side Request
Forgery).
This issue affects Apache HTTP Server 2.4.7 up to 2.4.51
(included).
For more details, see the changes file:
https://downloads.apache.org/httpd/CHANGES_2.4.52
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Fixes the following security issues:
*) SECURITY: CVE-2020-1934 (cve.mitre.org)
mod_proxy_ftp: Use of uninitialized value with malicious backend FTP
server. [Eric Covener]
*) SECURITY: CVE-2020-1927 (cve.mitre.org)
rewrite, core: Set PCRE_DOTALL flag by default to avoid unpredictable
matches and substitutions with encoded line break characters.
The fix for CVE-2019-10098 was not effective. [Ruediger Pluem]
The LICENSE file has been updated to fix a s/waranties/warranties/ typo, so
update the hash to match and adjust the spacing to match recent agreements:
-This software is provided "as is" and any express or implied waranties,
+This software is provided "as is" and any express or implied warranties,
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fixes the following security vulnerabilities:
*) SECURITY: CVE-2019-0197 (cve.mitre.org)
mod_http2: fixes a possible crash when HTTP/2 was enabled for a http:
host or H2Upgrade was enabled for h2 on a https: host. An Upgrade
request from http/1.1 to http/2 that was not the first request on a
connection could lead to a misconfiguration and crash. Servers that
never enabled the h2 protocol or only enabled it for https: and
did not set "H2Upgrade on" are unaffected by this issue.
[Stefan Eissing]
*) SECURITY: CVE-2019-0196 (cve.mitre.org)
mod_http2: using fuzzed network input, the http/2 request
handling could be made to access freed memory in string
comparision when determining the method of a request and
thus process the request incorrectly. [Stefan Eissing]
*) SECURITY: CVE-2019-0211 (cve.mitre.org)
MPMs unix: Fix a local priviledge escalation vulnerability by not
maintaining each child's listener bucket number in the scoreboard,
preventing unprivileged code like scripts run by/on the server (e.g. via
mod_php) from modifying it persistently to abuse the priviledged main
process. [Charles Fol <folcharles gmail.com>, Yann Ylavic]
*) SECURITY: CVE-2019-0196 (cve.mitre.org)
mod_http2: using fuzzed network input, the http/2 request
handling could be made to access freed memory in string
comparision when determining the method of a request and
thus process the request incorrectly. [Stefan Eissing]
*) SECURITY: CVE-2019-0217 (cve.mitre.org)
mod_auth_digest: Fix a race condition checking user credentials which
could allow a user with valid credentials to impersonate another,
under a threaded MPM. PR 63124. [Simon Kappel <simon.kappel axis.com>]
*) SECURITY: CVE-2019-0215 (cve.mitre.org)
mod_ssl: Fix access control bypass for per-location/per-dir client
certificate verification in TLSv1.3.
*) SECURITY: CVE-2019-0220 (cve.mitre.org)
Merge consecutive slashes in URL's. Opt-out with
`MergeSlashes OFF`. [Eric Covener]
For more details, see the CHANGES file:
https://www.apache.org/dist/httpd/CHANGES_2.4.39
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fixes the following security vulnerabilities:
*) SECURITY: CVE-2018-17199 (cve.mitre.org)
mod_session: mod_session_cookie does not respect expiry time allowing
sessions to be reused. [Hank Ibell]
*) SECURITY: CVE-2018-17189 (cve.mitre.org)
mod_http2: fixes a DoS attack vector. By sending slow request bodies
to resources not consuming them, httpd cleanup code occupies a server
thread unnecessarily. This was changed to an immediate stream reset
which discards all stream state and incoming data. [Stefan Eissing]
*) SECURITY: CVE-2019-0190 (cve.mitre.org)
mod_ssl: Fix infinite loop triggered by a client-initiated
renegotiation in TLSv1.2 (or earlier) with OpenSSL 1.1.1 and
later. PR 63052. [Joe Orton]
For more details, see the CHANGES file:
https://www.apache.org/dist/httpd/CHANGES_2.4.38
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fix for CVE-2017-9798 is included in this release, so this patch is
removed.
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Update commit log: not a security bump]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Fixes the following security issues:
CVE-2017-3167: In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26,
use of the ap_get_basic_auth_pw() by third-party modules outside of the
authentication phase may lead to authentication requirements being bypassed.
CVE-2017-3169: In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26,
mod_ssl may dereference a NULL pointer when third-party modules call
ap_hook_process_connection() during an HTTP request to an HTTPS port.
CVE-2017-7659: A maliciously constructed HTTP/2 request could cause
mod_http2 to dereference a NULL pointer and crash the server process.
CVE-2017-7668: The HTTP strict parsing changes added in Apache httpd 2.2.32
and 2.4.24 introduced a bug in token list parsing, which allows
ap_find_token() to search past the end of its input string. By maliciously
crafting a sequence of request headers, an attacker may be able to cause a
segmentation fault, or to force ap_find_token() to return an incorrect
value.
CVE-2017-7679: In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26,
mod_mime can read one byte past the end of a buffer when sending a malicious
Content-Type response header.
While we're at it, use the upstream sha256 checksum instead of sha1.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Thomas:
- Don't explicitly pass CC_FOR_BUILD and CFLAGS_FOR_BUILD, those are
already part of the default environment passed by the
autotools-package infrastructure.
- Explicitly disable Lua and LuaJIT support to avoid mis-detection of
host installation.
- Explicitly handle the optional support of libxml2, OpenSSL and
zlib. Especially, the absence of explicit handling for libxml2 was
causing a build failure due to the host libxml2 being detected.
- Remove /usr/manual and /usr/build from the target. This saves 20+
MB of target space.]
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
