Summary
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
* tornado: Tornado: Information disclosure via improper handling of credentials during HTTP redirects (CVE-2026-49853)
* tornado: Tornado: Denial of Service via uncontrolled gzip decompression memory consumption (CVE-2026-49855)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 9 | python-tornado | 0:6.5.8-0.el9_8.1 |
Vulnerabilities 2
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High 7.7
Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed only the Host header, leaving Authorization, auth_username, auth_password, and auth_mode in place when …
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High 7.5
tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)
Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but did not enforce an overall limit on accumulated decompressed chunks, allowing a malicious server acces…