Severity: moderate
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
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.
Credit:
Dhiraj Mishra (finder) Feng Ning (innora.ai / Innora Security Research) (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-59685
Timeline:
2026-05-06: reported 2026-10-01: fixed in 2.4.x by r1938670 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Use after free in modauthdigest 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.
Credit:
Zhen Kong (finder) Darren Carreras (DarrenC) (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-73637
Timeline:
2026-07-18: Report received 2026-10-01: fixed in 2.4.x by r1937721 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
A NULL pointer dereference in modxml2enc 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.
Credit:
Lucian Nitescu (finder) Zhen Kong (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-63686
Timeline:
2026-06-14: Report received 2026-10-01: fixed in 2.4.x by r1938678 2026-10-01: 2.4.69 released
Severity: moderate
Affected versions:
- Apache HTTP Server through 2.4.68
Description:
Integer overflow in moddavfs 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.
Credit:
Zhen Kong (finder) Calif.io in collaboration with Anthropic (finder) AISLE in partnership with Red Hat (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-93546
Timeline:
2026-07-28: reported 2026-10-01: fixed in 2.4.x by r1938682 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's moduserdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/moduserdir.html#userdir)
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Vlatko Kosturjak, Marlink Cyber (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-79768
Timeline:
2026-08-14: reported 2026-10-01: fixed in 2.4.x by r1938680 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Authentication bypass by capture-replay in modauthdigest 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.
Credit:
Hyojae Lee (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-73636
Timeline:
2026-06-08: Report received 2026-10-01: fixed in 2.4.x by r1937721 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.30 through 2.4.68
Description:
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via modproxyuwsgi and a crafted uwsgi response with Transfer-Encoding.
This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.
Credit:
Qing Xu (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-63718
Timeline:
2026-07-14: reported 2026-10-01: fixed in 2.4.x by r1938691 2026-10-01: 2.4.69 released
Severity: moderate
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Stack-based buffer overflow in modvhostalias 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.
Credit:
Hyojae Lee (finder) Zhen Kong (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-63292
Timeline:
2026-06-17: Report received 2026-10-01: fixed in 2.4.x by r1938676 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Improper validation of FTP PASV reply address in modproxyftp 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.
Credit:
Zhen Kong (finder) 4ra1n, pyn3rd and unam4 (finder) Charles Vosburgh (finder) sungbyeongchan (finder) Daradigu / RELAUNCH DEPT. (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-63045
Timeline:
2026-07-07: Report received 2026-10-01: fixed in 2.4.x by r1938674 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Improper Privilege Management vulnerability in Apache HTTP Server's modssl via SSLRequire and file-related expressions.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
kimchunbok (finder) l1nx1n (finder) Juthawong Naisanguansee (finder) Charles Vosburgh (finder) Mike Read (finder) Ryoma Nishioka (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-59797
Timeline:
2026-06-28: reported 2026-10-01: fixed in 2.4.x by r1938672 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Internal state files accessible to external parties in moddavfs 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.
Credit:
이지웅 (kimchunbok) (finder) sungbyeongchan (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-58415
Timeline:
2026-06-24: reported 2026-10-01: fixed in 2.4.x by r1938668 2026-10-01: 2.4.69 released
Severity: moderate
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Use After Free vulnerability in Apache HTTP Server's modhttp2 via shared session->bbtmp re-entrancy
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Lucian Nitescu (finder) Simon Kappel (finder) Gianluca Danesin, Altervista (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-57941
Timeline:
2026-06-15: reported 2026-10-01: fixed in 2.4.x by r1938665 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Out-of-bounds Write vulnerability in Apache HTTP Server's modproxyhtml with crafted HTTP response bodies.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Lucian Nitescu (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-56449
Timeline:
2026-06-14: reported 2026-10-01: fixed in 2.4.x by r1938661 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Use After Free vulnerability in Apache HTTP Server's modrewrite when using lookahead (%{LA-U:HTTP:...})
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Nebula Security (@nebusecurity) (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-56154
Timeline:
2026-05-25: reported 2026-10-01: fixed in 2.4.x by r1938660 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Out-of-bounds Write vulnerability in Apache HTTP Server's modcharsetlite.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
Bartlomiej Dmitruk at striga.ai (finder) Masumi Tanaka (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-56153
Timeline:
2026-06-09: reported 2026-10-01: fixed in 2.4.x by r1938658 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Missing authentication checks in modauthdigest 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.
Credit:
lokerxx (finder) Zhen Kong (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-48005
Timeline:
2026-05-14: Report received 2026-10-01: fixed in 2.4.x by r1937721 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's modsessioncookie 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.
Credit:
lokerxx (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-47360
Timeline:
2026-05-15: reported 2026-10-01: fixed in 2.4.x by r1938656 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68
Description:
NULL Pointer Dereference vulnerability in Apache HTTP Servers modheartmonitor over unicast listener.
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Credit:
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 (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-46729
Timeline:
2026-05-07: reported 2026-10-01: fixed in 2.4.x by r1938654 2026-10-01: 2.4.69 released
Severity: low
Affected versions:
- Apache HTTP Server 2.4.60 through 2.4.68
Description:
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 modmime.
This issue affects Apache HTTP Server: from 2.4.60 through 2.4.68.
Credit:
Feliks Penconek (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-42356
Timeline:
2026-04-03: reported 2026-10-01: fixed in 2.4.x by r1938650 2026-10-01: 2.4.69 released
Severity: moderate
Affected versions:
- Apache HTTP Server through 2.4.68
Description:
A memory calculation bug in moddav 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
Credit:
Zhenpeng (Leo) Lin at depthfirst (finder)
References:
https://httpd.apache.org/security/vulnerabilities24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-42528
Timeline:
2026-04-27: Report received 2026-10-01: fixed in 2.4.x by r1938652 2026-10-01: 2.4.69 released
A NULL pointer dereference in modxml2enc 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.
Apache HTTP Server: moddavfs namespace overflow
Apache HTTP Server: moduserdir information disclosure
Apache HTTP Server: modauthdigest DoS attack
Apache HTTP Server: modauthdigest one-time-nonce replay attack
Apache HTTP Server: modproxyuwsgi Transfer-Encoding response smuggling
Apache HTTP Server: modvhostalias stack overflow
Apache HTTP Server: modproxyftp PASV address handling
Apache HTTP Server: modssl SSLRequire allows .htaccess apexpr file-function
Apache HTTP Server: Out-of-Bounds Write in apdirectorywalk() Canonical-Name Rewrite on CASEBLINDFILESYSTEM