SUSE alert openSUSE-SU-2026:21036-1 (cosign)

From:
             
 
null@suse.de
To:
             
 
security-announce@lists.opensuse.org
Subject:
             
 
openSUSE-SU-2026:21036-1: moderate: Security update for cosign
Date:
             
 
Tue, 30 Jun 2026 09:48:02 +0200
Message-ID:
             
 
<20260630074802.2C750FF76@maintenance.suse.de>
Archive-link:
             
 
Article
openSUSE security update: security update for cosign
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21036-1
Rating: moderate
References:

  * bsc#1261859



Cross-References:

  * CVE-2026-39395



CVSS scores:

  * 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 ( 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves one vulnerability and has one bug fix can now be installed.

Description:

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 openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1049=1

Package List:

- openSUSE Leap 16.0:

  cosign-3.0.6-160000.1.1
  cosign-bash-completion-3.0.6-160000.1.1
  cosign-fish-completion-3.0.6-160000.1.1
  cosign-zsh-completion-3.0.6-160000.1.1

References:

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