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SUSE: python-Authlib Critical DoS Vulnerability Patch 2025:3754-2

suse
Calendar Grey October 23, 2025
Dist Suse Esm H88
Critical update for python-Authlib on SUSE addresses DoS risk, important patching recommended for user security.
* bsc#1251921 Cross-References: * CVE-2025-61920

Summary

## This update for python-Authlib fixes the following issues: * CVE-2025-61920: limited the size of the header to prevent DoS (bsc#1251921). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * Python 3 Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2025-3754=1 * openSUSE Leap 15.6 zypper in -t patch SUSE-2025-3754=1 openSUSE-SLE-15.6-2025-3754=1 * Python 3 Module 15-SP6 zypper in -t patch SUSE-SLE-Module-Python3-15-SP6-2025-3754=1 ## Package List: * Python 3 Module 15-SP7 (noarch) * python311-Authlib-1.3.1-150600.3.6.1 * openSUSE Leap 15.6 (noarch) * python311-Authlib-1.3.1-150600.3.6.1 * Python 3 Module 15-SP6 (noarch)

Topics%20covered

Topics Covered

security advisory software update DoS important OpenSUSE python-Authlib

References

* bsc#1251921

Cross-

* CVE-2025-61920

CVSS scores:

* CVE-2025-61920 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-61920 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-61920 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* openSUSE Leap 15.6

* Python 3 Module 15-SP6

* Python 3 Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP6

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Server 15 SP6

* SUSE Linux Enterprise Server 15 SP7

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

* SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-61920.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:3754-1
Release Date: 2025-10-23T10:27:09Z
Rating: important

Topics%20covered

Topics Covered

security advisory software update DoS important OpenSUSE python-Authlib

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