Severity: moderate Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.67 Description: 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. Credit: Elhanan Haenel (finder) Junhui Lee (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-34355 Timeline: 2026-03-21: Report received 2026-06-04: fixed in 2.4.x by r1934977 2026-06-08: 2.4.68 released
