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Message-ID: <2abc0385-4e58-4e2d-892d-53a78262aefd@oracle.com>
Date: Fri, 10 Apr 2026 18:46:29 -0700
From: Alan Coopersmith <alan.coopersmith@...cle.com>
To: oss-security@...ts.openwall.com
Subject: CPython [CVE-2026-1502] HTTP client proxy tunnel
headers not validated for CR/LF
-------- Forwarded Message --------
Subject: [Security-announce][CVE-2026-1502] HTTP client proxy tunnel headers
not validated for CR/LF
Date: Fri, 10 Apr 2026 17:51:54 +0000
From: Seth Larson <seth@...hon.org>
Reply-To: security-sig@...hon.org
To: security-announce@...hon.org
There is a MEDIUM severity vulnerability affecting CPython.
CR/LF bytes were not rejected by HTTP client proxy tunnel headers or host.
Please see the linked CVE ID for the latest information on affected versions:
* https://www.cve.org/CVERecord?id=CVE-2026-1502
* https://github.com/python/cpython/pull/146212
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