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SUSE Containerd Important DoS and Privilege Escalation Fix 2026-22424-1

suse
Calendar Grey July 3, 2026
Dist Suse Esm H88
An important security update for containerd fixes three vulnerabilities affecting SUSE. Immediate action required.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for containerd fixes the following issues * CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265794). * CVE-2026-34986: github.com/go-jose/go-jose/v3: crafted JWE input with a missing encrypted key can lead to a denial of service (bsc#1262948). * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266640). ## 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-6.0-769=1 ## Package List:

Topics%20covered

Topics Covered

security advisory denial of service SuSE privilege escalation important patch instruction

References

* bsc#1262948

* bsc#1265794

* bsc#1266640

Cross-

* CVE-2026-33814

* CVE-2026-34986

* CVE-2026-39821

CVSS scores:

* CVE-2026-33814 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-33814 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-33814 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-33814 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-34986 ( SUSE ): 8.7

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

* CVE-2026-34986 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-34986 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-34986 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-39821 ( SUSE ): 9.1

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22424-1
Release Date: 2026-06-25T09:00:00Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE privilege escalation important patch instruction

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