Is CVE-2026-46729 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-46729 being exploited in the wild.

How severe is CVE-2026-46729?

High severity, with a CVSS score of 7.5, published 1 October 2026.

Which products and versions are affected?

Apache HTTP Server 2.4.0 through 2.4.68.

Is there a fix for CVE-2026-46729?

Yes: fixed in Apache HTTP Server 2.4.69. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-46729 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-46729?

Check whether you run Apache HTTP Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-46729: Apache HTTP Server mod_heartmonitor null pointer dereference

CVE-2026-46729 · Severity: high · CVSS 7.5 · Published 2026-10-01

Apache HTTP Server's mod_heartmonitor module contains a null pointer dereference vulnerability in its unicast listener that can cause the web server to crash. An attacker with network access can send crafted unicast messages to trigger the vulnerability, leading to denial of service and potential downtime of web applications.

Technologies: Apache HTTP Server. Vendors: Apache.

Quick answers

Is CVE-2026-46729 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-46729 being exploited in the wild.
How severe is CVE-2026-46729?: High severity, with a CVSS score of 7.5, published 1 October 2026.
Which products and versions are affected?: Apache HTTP Server 2.4.0 through 2.4.68.
Is there a fix for CVE-2026-46729?: Yes: fixed in Apache HTTP Server 2.4.69. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-46729 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-46729?: Check whether you run Apache HTTP Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Apache HTTP Server 2.4.69

Technical details

A null pointer dereference in mod_heartmonitor's unicast listener handling allows remote attackers to crash the Apache HTTP Server process without authentication. The vulnerability can be triggered via crafted network messages to the heartmonitor listener. Attackers can remotely cause a denial of service condition by forcing the server to dereference a null pointer.

Affected products

Apache HTTP Server 2.4.0 through 2.4.68

Timeline

2026-05-07: disclosed
2026-10-01: patched
2026-10-01: advisory

References

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