Apache HTTP Server: mod_proxy_http2 denial of service

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ALPINE-CVE-2025-49630

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 modproxyhttp2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with...

AZL-65133 CVE-2025-49630 affecting package mod_http2 1.15.14-2

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 modproxyhttp2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with...

AZL-65220 CVE-2025-49630 affecting package httpd for versions less than 2.4.64-1

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 modproxyhttp2. Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with...

PT-2025-29118

Name of the Vulnerable Software and Affected Versions: Apache HTTP Server versions 2.4.26 through 2.4.63 Description: In specific proxy setups, an untrusted client can trigger a denial of service against Apache HTTP Server. This occurs due to an assertion within the mod proxy http2 module when...