SUSE-SU-2026:23047-1: low: Security update for runc

[SLE-SECURITY-UPDATES]

# Security update for runc

Announcement ID: SUSE-SU-2026:23047-1  
Release Date: 2026-08-03T07:15:47Z  
Rating: low  
References:

  * bsc#1268275

  
Cross-References:

  * CVE-2026-41579

  
CVSS scores:

  * CVE-2026-41579 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
  * CVE-2026-41579 ( NVD ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

  
Affected Products:

  * SUSE Linux Micro 6.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for runc fixes the following issues:

  * CVE-2026-41579: runc allows a malicious image with a /dev symlink to trigger
    limited host filesystem integrity violations (bsc#1268275).

Changes for runc:

  * update to 1.3.6:

  * Various integration test improvements. (#5222, #5237, #5226, #5229, #5239,
    #5249, #5269, #5287, #5295, #5304)

  * When masking directories with `maskPaths`, runc will now re- use a single
    `tmpfs` instance (which is not writeable) to reduce the number `tmpfs`
    superblocks that need to be reaped when containers die (in particular,
    Kubernetes applies masks to per-CPU sysfs directories which get expensive
    quickly).

  * update to 1.3.5

  * Recursive atime-related mount flags (rrelatime et al.) are now applied
    properly. (#5115, #5098)

  * PR #4757 caused a regression that resulted in spurious cannot start a
    container that has stopped errors when running runc create and has thus been
    reverted. (#5158, #5153, #5151, #4645, #4757)
  * Updated builds to Go 1.25, libseccomp v2.6.0. (#5111, #5053)
  * Minor signing keyring updates. (#5146, #5139, #5144, #5148)

## 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 Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-827=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * runc-1.3.6-1.1
    * runc-debuginfo-1.3.6-1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-41579.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268275

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