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Message-ID: <4e7cd4cf-6f20-2080-a582-2e972cc78ba5@apache.org>
Date: Mon, 04 May 2026 11:48:09 +0000
From: Eric Covener <covener@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-33857: Apache HTTP Server: Off-by-one OOB reads in AJP
 getter functions 

Severity: low 

Affected versions:

- Apache HTTP Server through 2.4.66

Description:

Out-of-bounds Read vulnerability in mod_proxy_ajp of 

Apache HTTP Server.

This issue affects Apache HTTP Server: through 2.4.66.

Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Credit:

Elhanan Haenel (finder)

References:

https://httpd.apache.org/security/vulnerabilities_24.html
https://httpd.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-33857

Timeline:

2026-03-20: Reported
2026-05-04: fixed by r1933341 in 2.4.x

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