CVE-2026-34356

Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.

Score

CVSS 3.1 7.5 High

Status

Analyzed - security@apache.org

Published

2026-06-08

Last modified

2026-06-08

Weaknesses

CWE-122

Affected products

• Http Server (Apache)
• Apache Http Server (Apache Software Foundation)

References

• https://httpd.apache.org/security/vulnerabilities_24.html
• http://www.openwall.com/lists/oss-security/2026/06/08/7