Bug 2454716 (CVE-2026-35536) - CVE-2026-35536 tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments
Summary: CVE-2026-35536 tornado: Tornado: Cookie attribute injection due to improper h...
Keywords:
Status: NEW
Alias: CVE-2026-35536
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2457334 2457335
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-03 04:01 UTC by OSIDB Bzimport
Modified: 2026-05-05 10:23 UTC (History)
21 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:13641 0 None None None 2026-05-05 09:18:21 UTC
Red Hat Product Errata RHSA-2026:13670 0 None None None 2026-05-05 10:23:31 UTC

Description OSIDB Bzimport 2026-04-03 04:01:14 UTC 
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.
Comment 3 errata-xmlrpc 2026-05-05 09:18:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:13641 https://access.redhat.com/errata/RHSA-2026:13641
Comment 4 errata-xmlrpc 2026-05-05 10:23:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:13670 https://access.redhat.com/errata/RHSA-2026:13670
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