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Message-ID: <72ac0123-ce2e-a98b-1680-06761893349b@apache.org>
Date: Mon, 08 Jun 2026 12:50:19 +0000
From: Eric Covener <covener@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-34355: Apache HTTP Server: mod_proxy_html buffer overflow
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
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