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From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: node-undici: CVE-2026-13697
Message-ID: <178538929920.1160031.6854598622645630588.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Thu, 30 Jul 2026 07:28:19 +0200
Delivered-To: submit@bugs.debian.org

Source: node-undici
Version: 8.5.0+dfsg+~cs3.2.0-3
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for node-undici.

CVE-2026-13697[0]:
| undici's cache interceptor mishandles malformed Cache-Control
| private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up
| to before 8.9.0, a response carrying a degenerate qualified private
| directive, such as private set to an empty value, can be stored in
| the default shared cache and later served to a different caller with
| the same cache key, disclosing private response bodies and headers
| including Set-Cookie. Separately, a Cache-Control header that
| combines an unqualified private directive with a qualified one
| triggers an uncaught TypeError in the cache-control parser, which
| rejects the request and, depending on the consumer's error handling,
| can terminate the process. Both issues affect applications using the
| cache interceptor in shared mode, including the default
| configuration. The issues are fixed in undici 7.29.0 and 8.9.0.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-13697
    https://www.cve.org/CVERecord?id=CVE-2026-13697
[1] https://github.com/nodejs/undici/security/advisories/GHSA-4cwx-7wf7-3272

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore
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