Reachable Assertion Affecting apache2 package, versions <2.4.64-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-ALPINE321-APACHE2-10695335
  • published11 Jul 2025
  • disclosed10 Jul 2025

Introduced: 10 Jul 2025

NewCVE-2025-49630  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 apache2 to version 2.4.64-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2 package and not the apache2 package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

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 Base Scores

version 3.1