Apache httpd 2.4.67 RPMs released and added to all supported platforms.
Major changes:
*) SECURITY: CVE-2026-34059: Apache HTTP Server: mod_proxy_ajp:
Heap Over-Read and memory disclosure in ajp_parse_data()
(cve.mitre.org)
Buffer Over-read vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Elhanan Haenel
*) SECURITY: CVE-2026-34032: Apache HTTP Server: mod_proxy_ajp:
Heap Buffer Over-Read Due to Missing Null-Termination Check
(ajp_msg_get_string) (cve.mitre.org)
Improper Null Termination, Out-of-bounds Read vulnerability in
Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Tianshuo Han (<[email protected]>)
*) SECURITY: CVE-2026-33857: Apache HTTP Server: Off-by-one OOB
reads in AJP getter functions (cve.mitre.org)
Out-of-bounds Read vulnerability in mod_proxy_ajp of
Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Elhanan Haenel
*) SECURITY: CVE-2026-33523: Apache HTTP Server: multiple modules:
HTTP response splitting forwarding malicious status line
(cve.mitre.org)
HTTP response splitting vulnerability in multiple Apache HTTP
Server modules with untrusted or compromised backend servers.
This issue affects Apache HTTP Server: from through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Haruki Oyama (Waseda University)
*) SECURITY: CVE-2026-33007: Apache HTTP Server: mod_authn_socache
crash (cve.mitre.org)
A NULL pointer dereference in the mod_authn_socache in Apache
HTTP Server 2.4.66 and earlier allows an unauthenticated remote
user to crash a child process in a caching forward proxy
configuration.
Users are recommended to upgrade to version 2.4.67, which fixes
this issue.
Credits: Pavel Kohout, Aisle Research, Aisle.com
*) SECURITY: CVE-2026-33006: Apache HTTP Server: mod_auth_digest
timing attack (cve.mitre.org)
A timing attack against mod_auth_digest in Apache HTTP Server
2.4.66 allows a bypass of Digest authentication by a remote
attacker.
Users are recommended to upgrade to version 2.4.67, which fixes
this issue.
Credits: Nitescu Lucian
*) SECURITY: CVE-2026-29169: Apache HTTP Server: mod_dav_lock
indirect lock crash (cve.mitre.org)
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.
Credits: Pavel Kohout, Aisle Research, Aisle.com
*) SECURITY: CVE-2026-29168: Apache HTTP Server: mod_md
unrestricted OCSP response (cve.mitre.org)
Allocation of Resources Without Limits or Throttling
vulnerability in Apache HTTP Server's mod_md via OCSP response
data.
This issue affects Apache HTTP Server: from 2.4.30 through
2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Pavel Kohout, Aisle Research, Aisle.com
*) SECURITY: CVE-2026-28780: Apache HTTP Server: buffer overflow in
mod_proxy_ajp via ajp_msg_check_header() (cve.mitre.org)
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of
Apache HTTP Server.
If mod_proxy_ajp connects to a malicious AJP server this AJP
server can send a malicious AJP message back to mod_proxy_ajp
and cause it to write 4 attacker controlled bytes after the end
of a heap based buffer.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Andrew Lacambra
*) SECURITY: CVE-2026-24072: Apache HTTP Server: mod_rewrite
elevation of privileges via ap_expr (cve.mitre.org)
An escalation of privilege bug in various modules in Apache HTTP
2.4.66 and earlier allows local .htaccess authors to read files
with the privileges of the httpd user.
Users are recommended to upgrade to version 2.4.67, which fixes
this issue.
Credits: y7syeu
*) SECURITY: CVE-2026-23918: Apache HTTP Server: http2: double free
and possible RCE on early reset (cve.mitre.org)
Double Free and possible RCE vulnerability in Apache HTTP Server
with the HTTP/2 protocol.
This issue affects Apache HTTP Server: 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes
the issue.
Credits: Bartlomiej Dmitruk, striga.ai
*) mod_md: update to version 2.6.10
- Fix issue #420 <https://github.com/icing/mod_md/issues/420> by ignoring
job.json files that claim to have completely finished a certificate
renewal, but have not produced the necessary result files.
*) mod_http2: update to version 2.0.39
Remove streams own memory allocator after reports of memory problems
with third party modules.
[Stefan Eissing]
*) mod_http2: update to version 2.0.38
Source sync with mod_h2 github repository. No functional change.
[Stefan Eissing]
*) Updated conf/mime.types: added vnd.sqlite3, HEIC, HEIF
[Alexandru Mărășteanu <hello alexei.ro>]
*) mod_md: update to version 2.6.7
- Fix a regression in `MDStapleOthers` which broke in v2.6.0 and no longer
applied, no matter the configuration.
*) mod_md: update to version 2.6.9
- Pebble 2.9+ reports another error when terms of service agreement is
not set. Treating all "userActionRequired" errors as permanent now.
*) mod_md: update to version 2.6.8
- Fix the ARI related `replaces` property in ACME order creation to only
be used when the CA supports ARI and it is enabled in the menu config.
- Fix compatibility with APR versions before 1.6.0 which do not have
`apr_cstr_casecmp` and should use `apr_strnatcasecmp` instead.
*) mod_http2: update to version 2.0.37
Prevent double purge of a stream, resulting in a double free.
Fixes PR 69899.
[Stefan Eissing]
*) mod_md: Use correct function name when compiling against APR < 1.6.0.
PR 69954 [Tần Quảng <[email protected]>]