CVE-2026-46729

Apache HTTP Server: mod_heartmonitor denial of service

State: Published
Severity: 7.5 High
Published: Oct 1, 2026
Updated: Oct 1, 2026
Reserved: May 17, 2026

Description

NULL Pointer Dereference vulnerability in Apache HTTP Servers mod_heartmonitor over unicast listener.

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
Apache HTTP ServerApache Software Foundation	2.4.0 through 2.4.68Affected

References

https://httpd.apache.org/security/vulnerabilities_24.htmlvendor-advisory
http://www.openwall.com/lists/oss-security/2026/10/01/13

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