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SUSE 16.0 cosign Moderate Attestation Issue Vulnern SUSE-SU-2026-22344-1

suse
Calendar Grey July 1, 2026
Dist Suse Esm H88
A moderate security update for cosign addresses CVE-2026-39395 vulnerability in SUSE Linux Enterprise Server.
An update that solves one vulnerability and contains one feature can now be installed.

Summary

## This update for cosign fixes the following issues Security issue: * CVE-2026-39395: Incorrect attestation verification due to malformed payloads or mismatched predicate types (bsc#1261859). Non security issue: * Update to version 3.0.5 (jsc#SLE-23879). ## 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-16.0-1049=1 * SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-1049=1 ## Package List: * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) * cosign-3.0.6-160000.1.1 * cosign-debuginfo-3.0.6-160000.1.1

Topics%20covered

Topics Covered

security advisory moderate update SuSE attestation cosign

References

* bsc#1261859

* jsc#SLE-23879

Cross-

* CVE-2026-39395

CVSS scores:

* CVE-2026-39395 ( SUSE ): 6.9

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

* CVE-2026-39395 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

* CVE-2026-39395 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

* CVE-2026-39395 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Products:

* SUSE Linux Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves one vulnerability and contains one feature can now be

installed.

##

* https://www.suse.com/security/cve/CVE-2026-39395.html

* https://bugzilla.suse.com/show_bug.cgi?id=1261859

* https://jira.suse.com/browse/SLE-23879

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22344-1
Release Date: 2026-06-22T15:12:24Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate update SuSE attestation cosign

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