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SUSE 2026-2823-1 helm Important Credential Exfiltration Risks

suse
Calendar Grey July 10, 2026
Dist Suse Esm H88
Update for helm fixes two vulnerabilities including one affecting credential management and privilege escalation.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for helm fixes the following issues * Update to version 3.21.2. * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266598). * CVE-2026-48978: oras.land/oras-go/v2/registry/remote/auth: malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens (bsc#1270127). ## 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 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2823=1 * SUSE Package Hub 15 15-SP7

Topics%20covered

Topics Covered

security advisory security issue SuSE important helm credential exfiltration

References

* bsc#1266598

* bsc#1270127

Cross-

* CVE-2026-39821

* CVE-2026-48978

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

* CVE-2026-48978 ( SUSE ): 2.1

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

* CVE-2026-48978 ( SUSE ): 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected Products:

* Containers Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2823-1
Release Date: 2026-07-09T18:14:15Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue SuSE important helm credential exfiltration

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