Red Hat Security Advisory: mod_http2 security update
A moderate severity security vulnerability (CVE-2025-49630) exists in the Apache mod_proxy_http2 module used by Red Hat Enterprise Linux 9.4. The issue involves untrusted client input causing an assertion failure in the module implementing HTTP/2 protocol support. Red Hat has released an update to address this vulnerability in the mod_http2 package for multiple architectures and variants of RHEL 9.4.
AI Analysis
Technical Summary
The vulnerability CVE-2025-49630 affects the Apache mod_proxy_http2 module, which implements HTTP/2 protocol support on top of libnghttp2 for httpd 2.4 servers. Untrusted input from a client can cause an assertion failure in this module, potentially leading to denial of service or other impacts. Red Hat has issued a security advisory (RHSA-2025:15727) providing an updated mod_http2 package to fix this issue for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Potential Impact
The vulnerability causes an assertion failure triggered by untrusted client input in the mod_proxy_http2 module, which may lead to denial of service conditions in affected Apache httpd servers. The security impact is rated as moderate by Red Hat. There is no indication of known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update for the mod_http2 package that addresses CVE-2025-49630. Users of Red Hat Enterprise Linux 9.4 Extended Update Support and related variants should apply the update as detailed in Red Hat advisory RHSA-2025:15727 and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: mod_http2 security update
Description
A moderate severity security vulnerability (CVE-2025-49630) exists in the Apache mod_proxy_http2 module used by Red Hat Enterprise Linux 9.4. The issue involves untrusted client input causing an assertion failure in the module implementing HTTP/2 protocol support. Red Hat has released an update to address this vulnerability in the mod_http2 package for multiple architectures and variants of RHEL 9.4.
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-49630 affects the Apache mod_proxy_http2 module, which implements HTTP/2 protocol support on top of libnghttp2 for httpd 2.4 servers. Untrusted input from a client can cause an assertion failure in this module, potentially leading to denial of service or other impacts. Red Hat has issued a security advisory (RHSA-2025:15727) providing an updated mod_http2 package to fix this issue for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants across multiple architectures (x86_64, s390x, ppc64le, aarch64).
Potential Impact
The vulnerability causes an assertion failure triggered by untrusted client input in the mod_proxy_http2 module, which may lead to denial of service conditions in affected Apache httpd servers. The security impact is rated as moderate by Red Hat. There is no indication of known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released an official security update for the mod_http2 package that addresses CVE-2025-49630. Users of Red Hat Enterprise Linux 9.4 Extended Update Support and related variants should apply the update as detailed in Red Hat advisory RHSA-2025:15727 and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:15727
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a419cb527e9c79719abcee9
Added to database: 06/28/2026, 22:14:13 UTC
Last enriched: 06/28/2026, 22:30:25 UTC
Last updated: 07/01/2026, 13:05:02 UTC
Views: 6
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