CVE-2026-35536: High severity tornadoweb tornado vulnerability

Published Apr 3, 2026
·
Updated

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

Other sources

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

— GitHub

Affected Software

2 affected componentsFixes available
pip/tornado<6.5.5
6.5.5
tornadoweb tornado<6.5.5

Event History

Apr 3, 2026
CVE Published
via MITRE·02:25 AM
Data Sourced
via MITRE·02:25 AM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·04:01 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:16 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·04:16 AM
Affected Software
Advisory Published
via GitHub·06:31 AM
Data Sourced
via GitHub·06:31 AM
DescriptionSeverityWeaknessAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203
CVE-2026-35536 - High severity tornadoweb tornado vulnerability - SecAlerts