Findings

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 cra…

Published Apr 3, 2026 · updated Jul 24, 2026 · tornadoweb tornado

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.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 3, 2026 · NIST NVD

    Detected

    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.

  2. Jul 24, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe tornadoweb/tornadoversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-35536

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References