oss-security - [ANNOUNCE] ATS is vulnerable to HTTP requests with body

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Message-ID: <CAGjw+kNQQdrjU3ypPr716M83omaoBT3+KsVxX8zMEDWPgsoLgQ@mail.gmail.com>
Date: Thu, 2 Apr 2026 09:35:50 -0600
From: Masakazu Kitajo <maskit@...che.org>
To: announce@...fficserver.apache.org, Dev <dev@...fficserver.apache.org>, 
	users <users@...fficserver.apache.org>, security@...fficserver.apache.org
Cc: oss-security@...ts.openwall.com
Subject: [ANNOUNCE] ATS is vulnerable to HTTP requests with body

Description:
ATS is vulnerable to HTTP requests with body.

CVE:
CVE-2025-58136 - A simple legitimate POST request causes a crash
CVE-2025-65114 - Malformed chunked message body allows request smuggling

Reported By:
Masakazu Kitajo (CVE-2025-58136)
Katsutoshi Ikenoya (CVE-2025-65114)

Vendor:
The Apache Software Foundation

Version Affected:
ATS 9.0.0 to 9.2.12
ATS 10.0.0 to 10.1.1

Mitigation:
9.x users should upgrade to 9.1.13 or later versions
10.x users should upgrade to 10.1.2 or later versions

For CVE-2025-58136, old version users
can set proxy.config.http.request_buffer_enabled to 0 (the default value is
0) to prevent the crash.
There is no workaround for CVE-2025-65114.

CVE:
https://www.cve.org/CVERecord?id=CVE-2025-58136
https://www.cve.org/CVERecord?id=CVE-2025-65114

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

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