CVE-2025-49630

Apache HTTP Server: mod_proxy_http2 denial of service

CVSS 7.5 HIGHEPSS 1.1%CWE-617

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".

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Produtos afetados

Apache Software Foundation · Apache HTTP Server

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Referências

https://httpd.apache.org/security/vulnerabilities_24.html https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html http://www.openwall.com/lists/oss-security/2025/07/10/2 http://www.openwall.com/lists/oss-security/2025/07/10/7