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openSUSE Python-Tornado6 Important Authorization Memory Issues 2026-21067-1

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
Important security update for openSUSE fixing vulnerabilities in python-tornado6 with recommendations for patch installation.
An update that solves 3 vulnerabilities and has 3 bug fixes can now be installed.

Description

This update for python-tornado6 fixes the following issues

- CVE-2026-49853: authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient (bsc#1268395).

- CVE-2026-49854: out-of-bounds memory access via C extension (bsc#1268396).

- CVE-2026-49855: AsyncHTTPClient accumulates decompressed chunks without size limit (bsc#1268397).

Patch instructions:

To install this openSUSE security update use the suse recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

zypper in -t patch openSUSE-Leap-16.0-1089=1

Topics%20covered

Topics Covered

security advisory important authorization issue OpenSUSE memory access issue python-tornado6

Patch

Package List

- openSUSE Leap 16.0:

python313-tornado6-6.5-160000.5.1

References

* bsc#1268395

* bsc#1268396

* bsc#1268397

References:

* https://www.suse.com/security/cve/CVE-2026-49853.html

* https://www.suse.com/security/cve/CVE-2026-49854.html

* https://www.suse.com/security/cve/CVE-2026-49855.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21067-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory important authorization issue OpenSUSE memory access issue python-tornado6

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