CVE-2025-49630

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2025-49630
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49630.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-49630
Aliases
Downstream
Related
Published
2025-07-10T16:57:40.117Z
Modified
2026-05-18T05:57:31.340478008Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Apache HTTP Server: mod_proxy_http2 denial of service
Details

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 modproxyhttp2.

Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on".

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49630.json",
    "cwe_ids": [
        "CWE-617"
    ],
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "2.4.26"
                },
                {
                    "last_affected": "2.4.63"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "introduced": "2.4.26"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "cna_assigner": "apache"
}
References

Affected packages

Git / github.com/apache/httpd

Affected ranges

Type
GIT
Repo
https://github.com/apache/httpd
Events
Introduced
3cdd2d84507d2a86eb5dab2eec96f1035bb76d6c
Fixed
7e926454793abd7d71b6afc8bd1ec1648752c6ad
Database specific 
{
    "extracted_events": [
        {
            "introduced": "2.4.26"
        },
        {
            "fixed": "2.4.64"
        }
    ],
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49630.json"