CVE-2025-49630

Name
CVE-2025-49630
Description
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on".
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
vendor-advisory https://httpd.apache.org/security/vulnerabilities_24.html
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/07/10/2
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2025/07/10/7

Match rules

CPE URI Source package Min version Max version
apache-http-server >= 2.4.26 <= 2.4.63

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
apache2 edge-main 2.4.64-r0 Kaarle Ritvanen <kunkku@alpinelinux.org> fixed
apache2 3.22-main 2.4.64-r0 Kaarle Ritvanen <kunkku@alpinelinux.org> fixed
apache2 3.21-main 2.4.64-r0 Kaarle Ritvanen <kunkku@alpinelinux.org> fixed
apache2 3.20-main 2.4.64-r0 Kaarle Ritvanen <kunkku@alpinelinux.org> fixed
apache2 3.19-main 2.4.64-r0 Kaarle Ritvanen <kunkku@alpinelinux.org> fixed