SUSE-SU-2026:22938-1: low: Security update for runc

[SLE-UPDATES]

# Security update for runc

Announcement ID: SUSE-SU-2026:22938-1  
Release Date: 2026-07-23T13:37:43Z  
Rating: low  
References:

  * bsc#1268275

  
Cross-References:

  * CVE-2025-31133
  * CVE-2025-52565
  * CVE-2026-41579

  
CVSS scores:

  * CVE-2025-31133 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2025-31133 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2025-31133 ( NVD ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-31133 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2025-52565 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2025-52565 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2025-52565 ( NVD ):  8.4
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-52565 ( NVD ):  7.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
  * 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 6.2

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for runc fixes the following issues:

Update to 1.3.6.

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

Other updates and bugfixes:

  * Version 1.3.6:
  * Various integration test improvements.
  * 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).
  * Version 1.3.5:
  * Recursive atime-related mount flags (rrelatime et al.) are now applied
    properly.
  * 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.
  * Updated builds to Go 1.25, libseccomp v2.6.0.
  * Minor signing keyring updates.

## 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 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1342=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * runc-debuginfo-1.3.6-160000.1.1
    * runc-1.3.6-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-31133.html
  * https://www.suse.com/security/cve/CVE-2025-52565.html
  * https://www.suse.com/security/cve/CVE-2026-41579.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268275

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