SUSE-SU-2026:1355-1: important: Security update for rubygem-bundler

[SLE-UPDATES]

# Security update for rubygem-bundler

Announcement ID: SUSE-SU-2026:1355-1  
Release Date: 2026-04-15T13:37:50Z  
Rating: important  
References:

  * bsc#1185842
  * bsc#1193578

  
Cross-References:

  * CVE-2020-36327
  * CVE-2021-43809

  
CVSS scores:

  * CVE-2020-36327 ( SUSE ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2020-36327 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2021-43809 ( SUSE ):  7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
  * CVE-2021-43809 ( NVD ):  7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
  * CVE-2021-43809 ( NVD ):  6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * Basesystem Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for rubygem-bundler fixes the following issues:

Updated to version 2.2.34.

  * CVE-2020-36327: Bundler chooses a dependency source based on the highest gem
    version number, which means that a rogue gem found at a public source may be
    chosen (bsc#1185842)

  * CVE-2021-43809: rubygem-bundler: remote execution via Gemfile argument
    injection (bsc#1193578)

## 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:

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1355=1

## Package List:

  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * ruby2.5-rubygem-bundler-2.2.34-150700.21.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2020-36327.html
  * https://www.suse.com/security/cve/CVE-2021-43809.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1185842
  * https://bugzilla.suse.com/show_bug.cgi?id=1193578

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