CVE-2026-46729 Apache HTTP Server - Null Pointer Dereference

Apache HTTP Server 2.4.0 through 2.4.68 contains a null pointer dereference caused by improper handling in mod_heartmonitor unicast listener, letting attackers cause denial of service, exploit requires network access.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Null Pointer Dereference
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-476

Vendor fix

Update to a version later than 2.4.68 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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