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Vulnerability record · CVE-2026-35536 · published 3 April 2026

CVE-2026-35536: Tornadoweb tornado vulnerability

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.

5.3 CVSS 3.1 Medium EPSS 0.29% · top 81.0% CWE-159 · CWE-159
5.3CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
24 Jul 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-35536), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.