CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NCVE-2026-35536
Medium (5.3) in tornadoweb tornado. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in tornado 6.5.5.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
- CWE
- CWE-159
- Published
- Modified
- Record from
- the NVD, synced
Affected
- tornadoweb:tornado
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-78cv-mqj4-43f7 | PyPI | tornado | <6.5.5 | 6.5.5 |
| GHSA-fqwm-6jpj-5wxc | PyPI | tornado | <6.5.5 | 6.5.5 |
| PYSEC-2026-2287 | PyPI | tornado | <6.5.5 | 6.5.5 |