CVE-2026-35536
Public on 2026-04-03
Modified on 2026-04-03
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 v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | python-tornado | 2026-05-14 | ALAS2-2026-3286 | Fixed |
| Amazon Linux 2023 | python-tornado | 2026-04-30 | ALAS2023-2026-1587 | Fixed |
| Amazon Linux 2 - Core | python3-tornado | 2026-05-14 | ALAS2-2026-3287 | Fixed |
| Amazon Linux 2023 | python3.13-tornado | 2026-04-30 | ALAS2023-2026-1588 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | CVSSv3 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |