CVE-2026-34355

Apache HTTP Server: mod_proxy_html buffer overflow

CVSS 7.5 HIGHEPSS 0.6%CWE-122

A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Apache Software Foundation · Apache HTTP Server

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References

https://httpd.apache.org/security/vulnerabilities_24.html http://www.openwall.com/lists/oss-security/2026/06/08/6