RHSA-2026:90283 — Security Advisory
Red Hat Security Advisory: python-tornado security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 27, 2026
Updated · November 4, 2026
Topic
An update for python-tornado is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
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)
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tornado: Tornado: Denial of Service via uncontrolled gzip decompression memory consumption (CVE-2026-49855)
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tornado: Tornado: Denial of Service via memory amplification in multipart parsing (CVE-2026-91990)
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tornado: Tornado: Denial of Service via decompression bomb in CurlAsyncHTTPClient (CVE-2026-103262)
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.