CVE-2026-35536 | THREATINT

Description

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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-03 | Assigner mitre

HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-159 Improper Handling of Invalid Use of Special Elements

Product status

Default status

unaffected

Any version before 6.5.5

affected

References

github.com/...ornado/security/advisories/GHSA-78cv-mqj4-43f7

github.com/tornadoweb/tornado/releases/tag/v6.5.5

cve.org (CVE-2026-35536)

nvd.nist.gov (CVE-2026-35536)

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