Is CVE-2026-35536 actively exploited?

CVE-2026-35536 has no public evidence of in-the-wild exploitation as of 2026-04-10.

What is the CVSS score for CVE-2026-35536?

CVE-2026-35536 has a CVSS score of 7.2 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

How do I patch CVE-2026-35536?

Patch guidance is available from tornadoweb security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-35536.

Fix CVE-2026-35536 - HIGH tornadoweb tornado

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Weaknesses: CWE-159

Metadata

Primary Vendor: TORNADOWEB
Published: 4/3/2026
Last Modified: 4/10/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

tornadoweb : tornado

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-35536. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-35536

View on NIST NVD

CVE-2026-35536 vulnerability