Failure to Sanitize Special Element Affecting python-tornado package, versions <6.5.5-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-PYTHONTORNADO-15927650
  • published8 Apr 2026
  • disclosed3 Apr 2026

Introduced: 3 Apr 2026

CVE-2026-35536  (opens in a new tab)
CWE-159  (opens in a new tab)

How to fix?

Upgrade Debian:unstable python-tornado to version 6.5.5-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-tornado package and not the python-tornado package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.

CVSS Base Scores

version 3.1