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SUSE 2026 20482-1 Python-Pyasn1 Important Denial of Service Fix

suse
Calendar Grey February 27, 2026
Dist Suse Esm H88
Critical update for python-pyasn1 on SUSE addressing Denial of Service threat effectively and enhancing system security.
An update that solves one vulnerability can now be installed.

Summary

## This update for python-pyasn1 fixes the following issues: * CVE-2026-23490: Fixed malformed RELATIVE-OID with excessive continuation octets leading to Denial of Service (bsc#1256902). ## 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: * SUSE Linux Micro 6.1 zypper in -t patch SUSE-SLE-Micro-6.1-399=1 ## Package List: * SUSE Linux Micro 6.1 (noarch) * python311-pyasn1-0.5.0-slfo.1.1_2.1

Topics%20covered

Topics Covered

security advisory denial of service SuSE important python-pyasn1

References

* bsc#1256902

Cross-

* CVE-2026-23490

CVSS scores:

* CVE-2026-23490 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-23490 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* SUSE Linux Micro 6.1

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-23490.html

* https://bugzilla.suse.com/show_bug.cgi?id=1256902

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20482-1
Release Date: 2026-02-17T09:34:54Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important python-pyasn1

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