Reachable Assertion Affecting apache/httpd package, versions [2.4.26 ,2.4.64-rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-APACHEHTTPD-11426546
- published3 Aug 2025
- disclosed14 Jul 2025
- creditAnthony CORSIEZ
Introduced: 14 Jul 2025
CVE-2025-49630 (opens in a new tab)How to fix?
Upgrade apache/httpd to version 2.4.64-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Reachable Assertion via the open_stream() when handling HTTP/0.9 requests. An attacker can cause the server to crash by sending specially crafted inputs from an untrusted client.
Note: This is only exploitable if the server is configured as a reverse proxy for an HTTP/2 backend with ProxyPreserveHost set to "on".