CVE-2025-49630

Apache HTTP Server: mod_proxy_http2 denial of service

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".

Category

N/A
CVSS
Severity:
EPSS 0.02%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache HTTP Server
Published at:
Updated at:

References

Link Tags
https://httpd.apache.org/security/vulnerabilities_24.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2025-49630?
CVE-2025-49630 has not yet been assigned a CVSS score.
How to fix CVE-2025-49630?
To fix CVE-2025-49630, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-49630 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-49630 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-49630?
CVE-2025-49630 affects Apache Software Foundation Apache HTTP Server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.