Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: 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 crafted characters.
Fixed packages 4
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | python3.13-tornado | 0:6.4.2-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.13-tornado-debuginfo | 0:6.4.2-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.13-tornado-debugsource | 0:6.4.2-1.amzn2023.0.3 |
| Amazon Linux · 2023 | python3.13-tornado-doc | 0:6.4.2-1.amzn2023.0.3 |
Vulnerabilities 1
-
High 7.2
Tornado has incomplete validation of cookie attributes
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.
References
-
web
https://alas.aws.amazon.com/cve/html/CVE-2026-35536.html