Resource Allocation Issue in Apache HTTP Server Mod_MD
CVE-2026-29168

7.3HIGH

Key Information:

Vendor

Apache
Status
Apache Http Server
Vendor
CVE Published:
5 May 2026

What is CVE-2026-29168?

A resource allocation issue exists in the Apache HTTP Server's mod_md module due to improper handling of OCSP response data. This flaw can lead to resource exhaustion, potentially affecting the performance and availability of the server. It impacts versions 2.4.30 through 2.4.66. Users are urged to update to version 2.4.67 or later to mitigate the vulnerability. Ensure your web server is secure by addressing this critical issue promptly.

Affected Version(s)

Apache HTTP Server 2.4.30 <= 2.4.66

References

https://httpd.apache.org/security/vulnerabilities_24.html
vendor-advisory

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pavel Kohout, Aisle Research, Aisle.com
.