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Apache HTTP Server Reachable Assertion Vulnerability (CVE-2025-49630) - Vulnerability Database

Apache HTTP Server Reachable Assertion Vulnerability (CVE-2025-49630)

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".

References

CVE-2025-49630

Related Vulnerabilities

Apache HTTP Server Out-of-bounds Write Vulnerability (CVE-2021-39275) Critical
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Jboss EAP Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-10688) Medium
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Joomla Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2020-10242) Medium
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Joomla Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Vulnerability (CVE-2020-10243) Critical
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ownCloud Server-Side Request Forgery (SSRF) Vulnerability (CVE-2020-10252) High
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Severity

High

Classification

CVE-2025-49630
CWE-617
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Tags

Missing Update
Known Vulnerabilities