[ Reason ]
A lot of low/medium vulnerabilities were published in apache2 version
2.4.69. This project is ~LTS, so we decided to follow upstream changes
[ Impact ]
Low/medium security issues
[ Tests ]
(What automated or manual tests cover the affected code?)
[ Risks ]
Medium risks, test passed
[ Checklist ]
[X] *all* changes are documented in the d/changelog
[X] I reviewed all changes and I approve them
[X] attach debdiff against the package in (old)stable
[X] the issue is verified as fixed in unstable
[ Notes ]
The whole debdiff is available at
https://people.debian.org/~yadd/apache2_2.4.69-1~deb13u1.debdiff
I attached only the debian/ debdiff
[ Changes ]
Fixes for:
low: limited RCE for some internal redirects to non-CGI files in CGI directories (CVE-2026-42356)
Deployment of wrong handler vulnerability in Apache HTTP Server allows the target of some internal redirects from CGI programs to also be treated as CGI and executed. The target must already be in a directory enabled for CGI and have no other extension understood by mod_mime.
This issue affects Apache HTTP Server: from 2.4.60 through 2.4.68.
Acknowledgements: finder: Feliks Penconek
Reported to security team 2026-04-03
fixed in 2.4.x by r1938650 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.60 through 2.4.68
moderate: mod_dav shared lock overflow (CVE-2026-42528)
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes.
Users are recommended to upgrade to version 2.4.69, which fixes this issue
Acknowledgements: finder: Zhenpeng (Leo) Lin at depthfirst
Report received 2026-04-27
fixed in 2.4.x by r1938652 2026-10-01
Update 2.4.69 released 2026-10-01
Affects through 2.4.68
low: mod_heartmonitor denial of service (CVE-2026-46729)
NULL Pointer Dereference vulnerability in Apache HTTP Servers mod_heartmonitor over unicast listener.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: Zhang San
finder: Ankit Prateek (OffByQuant)
finder: Zhen Kong
finder: SeungHyun Cho of KISA
finder: 4ra1n, pyn3rd and unam4
finder: Ryoma Nishioka
finder: Keita Sode
Reported to security team 2026-05-07
fixed in 2.4.x by r1938654 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_session: Session cookie not removed during internal redirect (CVE-2026-47360)
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's mod_session_cookie module.
When SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements: finder: lokerxx
Reported to security team 2026-05-15
fixed in 2.4.x by r1938656 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_auth_digest reauthentication attack (CVE-2026-48005)
Missing authentication checks in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause a denial of service (forced re-authentication) via forged Authorization headers when Digest authentication is enabled with AuthDigestNcCheck .
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements:
finder: lokerxx
finder: Zhen Kong
Report received 2026-05-14
fixed in 2.4.x by r1937721 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_charset_lite: Heap overflow in finish_partial_char (CVE-2026-56153)
Out-of-bounds Write vulnerability in Apache HTTP Server's mod_charset_lite.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: Bartlomiej Dmitruk at striga.ai
finder: Masumi Tanaka
Reported to security team 2026-06-09
fixed in 2.4.x by r1938658 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_rewrite use-after-free via %{LA-U:HTTP:...} (CVE-2026-56154)
Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...})
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements: finder: Nebula Security (@nebusecurity)
Reported to security team 2026-05-25
fixed in 2.4.x by r1938660 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_proxy_html: crash in dump_content (CVE-2026-56449)
Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements: finder: Lucian Nitescu
Reported to security team 2026-06-14
fixed in 2.4.x by r1938661 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
moderate: mod_http2 use-after-free / wild write via shared session->bbtmp re-entrancy (CVE-2026-57941)
Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: Lucian Nitescu
finder: Simon Kappel
finder: Gianluca Danesin, Altervista
Reported to security team 2026-06-15
fixed in 2.4.x by r1938665 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_dav_fs property database read access (CVE-2026-58415)
Internal state files accessible to external parties in mod_dav_fs in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows a remote client to read WebDAV dead properties of resources it cannot author via a GET request for the .DAV state directory
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: 이지웅 (kimchunbok)
finder: sungbyeongchan
Reported to security team 2026-06-24
fixed in 2.4.x by r1938668 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
moderate: Out-of-Bounds Write in ap_directory_walk() Canonical-Name Rewrite on CASE_BLIND_FILESYSTEM (CVE-2026-59685)
Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: Dhiraj Mishra
finder: Feng Ning (innora.ai / Innora Security Research)
Reported to security team 2026-05-06
fixed in 2.4.x by r1938670 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_ssl SSLRequire allows .htaccess ap_expr file-function (CVE-2026-59797)
Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements:
finder: kimchunbok
finder: l1nx1n
finder: Juthawong Naisanguansee
finder: Charles Vosburgh
finder: Mike Read
finder: Ryoma Nishioka
Reported to security team 2026-06-28
fixed in 2.4.x by r1938672 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_proxy_ftp PASV address handling (CVE-2026-63045)
Improper validation of FTP PASV reply address in mod_proxy_ftp in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows, in forward proxy configurations, an untrusted FTP server to cause the proxy to open a data connection to an arbitrary third-party host via a crafted PASV response.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements:
finder: Zhen Kong
finder: 4ra1n, pyn3rd and unam4
finder: Charles Vosburgh
finder: sungbyeongchan
finder: Daradigu / RELAUNCH DEPT.
Report received 2026-07-07
fixed in 2.4.x by r1938674 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
moderate: mod_vhost_alias stack overflow (CVE-2026-63292)
Stack-based buffer overflow in mod_vhost_alias in Apache Software Foundation Apache HTTP Server through 2.4.68 on all platforms allows a remote client to cause a denial of service or potentially execute arbitrary code via an HTTP request with a Host header exceeding 8192 bytes when VirtualDocumentRoot uses a hostname format specifier and LimitRequestFieldSize is raised above the default.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements:
finder: Hyojae Lee
finder: Zhen Kong
Report received 2026-06-17
fixed in 2.4.x by r1938676 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_xml2enc crash on charset conversion failure (CVE-2026-63686)
A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements:
finder: Lucian Nitescu
finder: Zhen Kong
Report received 2026-06-14
fixed in 2.4.x by r1938678 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_proxy_uwsgi Transfer-Encoding response smuggling (CVE-2026-63718)
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding.
This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.
Acknowledgements: finder: Qing Xu
Reported to security team 2026-07-14
fixed in 2.4.x by r1938691 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.30 through 2.4.68
low: mod_auth_digest one-time-nonce replay attack (CVE-2026-73636)
Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements: finder: Hyojae Lee
Report received 2026-06-08
fixed in 2.4.x by r1937721 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_auth_digest DoS attack (CVE-2026-73637)
Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0.
Users are recommended to upgrade to version 2.4.69, which fixes this issue.
Acknowledgements:
finder: Zhen Kong
finder: Darren Carreras (DarrenC)
Report received 2026-07-18
fixed in 2.4.x by r1937721 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
low: mod_userdir information disclosure (CVE-2026-79768)
Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir)
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Acknowledgements: finder: Vlatko Kosturjak, Marlink Cyber
Reported to security team 2026-08-14
fixed in 2.4.x by r1938680 2026-10-01
Update 2.4.69 released 2026-10-01
Affects 2.4.0 through 2.4.68
moderate: mod_dav_fs namespace overflow (CVE-2026-93546)
Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.
Acknowledgements:
finder: Zhen Kong
finder: Calif.io in collaboration with Anthropic
finder: AISLE in partnership with Red Hat
Reported to security team 2026-07-28
fixed in 2.4.x by r1938682 2026-10-01
Update 2.4.69 released 2026-10-01
Affects through 2.4.68
[ Other info ]
(Anything else the release team should know.)