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SUSE Python-Pyasn1 Important Denial of Service Update 2026-22765-1

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Calendar Grey July 22, 2026
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This SUSE advisory addresses important updates for python-pyasn1 resolving three critical issues that impact system stability.
A security update for python-pyasn1 addresses three vulnerabilities in SUSE Linux Micro 6.2, including denial of service issues, with an important rating and recommended installati...

Summary

## This update for python-pyasn1 fixes the following issues: * CVE-2026-59884: BER/CER/DER decoder denial of service via unbounded long- form tag IDs (bsc#1271464). * CVE-2026-59885: quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service (bsc#1271465). * CVE-2026-59886: uncontrolled resource consumption when converting decoded REAL values (bsc#1271466). ## 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 6.2 zypper in -t patch SUSE-SL-Micro-6.2-1301=1 ## Package List: * SUSE Linux Micro 6.2 (noarch) * python313-pyasn1-0.6.1-160000.5.1

Topics%20covered

Topics Covered

security advisory denial of service SuSE important python-pyasn1 cve 2026

References

* bsc#1271464

* bsc#1271465

* bsc#1271466

Cross-

* CVE-2026-59884

* CVE-2026-59885

* CVE-2026-59886

CVSS scores:

* CVE-2026-59884 ( 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-2026-59884 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-59884 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-59885 ( 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-2026-59885 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-59885 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-59886 ( 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22765-1
Release Date: 2026-07-20T12:15:58Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important python-pyasn1 cve 2026

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