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SUSE google-osconfig-agent Important Validation Bypass Vuln 2026-3209-1

suse
Calendar Grey July 23, 2026
Scroller Suse
This update addresses a significant issue in google-osconfig-agent, enhancing SUSE system security.
A security update addressing a privilege escalation vulnerability in google-osconfig-agent is available, affecting multiple SUSE Linux Enterprise products, with critical CVSS score...

Summary

## This update for google-osconfig-agent fixes the following issue * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266603). ## 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: * Public Cloud Module 12 zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2026-3209=1 ## Package List: * Public Cloud Module 12 (aarch64 ppc64le s390x x86_64) * google-osconfig-agent-20260615.01-1.50.1

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation vulnerability important google-osconfig-agent

References

* bsc#1266603

Cross-

* CVE-2026-39821

CVSS scores:

* CVE-2026-39821 ( SUSE ): 9.1

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

* CVE-2026-39821 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

* CVE-2026-39821 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

* CVE-2026-39821 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected Products:

* Public Cloud Module 12

* SUSE Linux Enterprise High Performance Computing 12 SP2

* SUSE Linux Enterprise High Performance Computing 12 SP3

* SUSE Linux Enterprise High Performance Computing 12 SP4

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Server 12

* SUSE Linux Enterprise Server 12 SP1

* SUSE Linux Enterprise Server 12 SP2

* SUSE Linux Enterprise Server 12 SP3

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3209-1
Release Date: 2026-07-23T14:12:01Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation vulnerability important google-osconfig-agent

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