CVE-2026-35536

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.

Score

CVSS 3.1 7.2 High

Status

Analyzed - cve@mitre.org

Published

2026-04-03

Last modified

2026-04-03

Weaknesses

CWE-159

Affected products

• Tornado (Tornadoweb)

References

• https://github.com/tornadoweb/tornado/releases/tag/v6.5.5
• https://github.com/tornadoweb/tornado/security/advisories/GHSA-78cv-mqj4-43f7