ESB-2026.3281
PUBLISHED
CVSS 7.5 HIGH
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AUSCERT External Security Bulletin Redistribution
ESB-2026.3281
python-tornado security update
7 April 2026
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AUSCERT Security Bulletin Summary
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Product: python-tornado
Publisher: Debian
Operating System: Debian GNU/Linux
Resolution: Patch/Upgrade
CVE Names: CVE-2025-67724 CVE-2025-67725 CVE-2025-67726
Original Bulletin:
https://lists.debian.org/debian-security-announce/2026/msg00104.html
Comment: CVSS (Max): 7.5 CVE-2025-67726 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: NIST, [GitHub]
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (Max): 0.3% (53rd) CVE-2025-67725 2026-04-05
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Debian Security Advisory DSA-6195-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
April 03, 2026 https://www.debian.org/security/faq
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Package : python-tornado
CVE ID : CVE-2025-67724 CVE-2025-67725 CVE-2025-67726
Multiple security vulnerabilities were discovered in the Tornado Python
web framework, which could result in denial of service, header injection
or cross-site scripting.
For the oldstable distribution (bookworm), this problem has been fixed
in version 6.2.0-3+deb12u4.
For the stable distribution (trixie), this problem has been fixed in
version 6.4.2-3+deb13u2.
We recommend that you upgrade your python-tornado packages.
For the detailed security status of python-tornado please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python-tornado
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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