Alerts This Week
Warning Icon 1 1,149
Alerts This Week
Warning Icon 1 1,149

SUSE Python-Pyasn1 Important Denial-of-Service Issue CVE-2026-23490

suse
Calendar Grey January 28, 2026
Dist Suse Esm H88
SUSE update addresses important security issue in python-pyasn1 to prevent Denial-of-Service attacks and memory issues.
An update that solves one vulnerability can now be installed.

Summary

## This update for python-pyasn1 fixes the following issues: * CVE-2026-23490: Fixed Denial-of-Service issue that may lead to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets (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 Enterprise Server 16.0 zypper in -t patch SUSE-SLES-16.0-178=1 * SUSE Linux Enterprise Server for SAP Applications 16.0 zypper in -t patch SUSE-SLES-16.0-178=1 ## Package List: * SUSE Linux Enterprise Server 16.0 (noarch) * python313-pyasn1-0.6.1-160000.3.1 * SUSE Linux Enterprise Server for SAP Applications 16.0 (noarch) * python313-pyasn1-0.6.1-160000.3.1

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 Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP Applications 16.0

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-2026:20133-1
Release Date: 2026-01-22T16:35:43Z
Rating: important

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here