Bug 2544835 (CVE-2026-46729)

Summary: CVE-2026-46729 httpd: httpd: mod_heartmonitor: Denial of Service via NULL pointer dereference
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: csutherl, jclere, pjindal, plodge, rhel-process-autobot, szappis, vchlup, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the mod_heartmonitor module of the Apache HTTP Server. A remote, unauthenticated attacker can exploit a NULL pointer dereference vulnerability when the module is configured with a unicast listener. By sending specially crafted network traffic to the listening service, an attacker can crash the server process, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2545039    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-01 23:07:38 UTC
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.