CVE-2025-49630 (GCVE-0-2025-49630)
Vulnerability from cvelistv5 – Published: 2025-07-10 16:57 – Updated: 2025-11-04 21:11
VLAI
EPSS
VEX
Title
Apache HTTP Server: mod_proxy_http2 denial of service
Summary
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".
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-11 16:06 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.26 , ≤ 2.4.63
(semver)
|
guessed |
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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