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SUSE Ignition 16.0 Important Auth Bypass CVE-2026-33186 Update 2026-21370-1

suse
Calendar Grey April 28, 2026
Dist Suse Esm H88
Update for SUSE addresses an important issue regarding authorization bypass in ignition, improving security measures.
An update that solves one vulnerability can now be installed.

Summary

## This update for ignition fixes the following issue: * CVE-2026-33186: Fixed an authorization bypass due to improper validation of the HTTP/2: path pseudo-header (bsc#1260251). ## 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 Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-615=1 * SUSE Linux Enterprise Server 16.0 zypper in -t patch SUSE-SLES-16.0-615=1 ## Package List: * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64) * ignition-2.21.0-160000.3.1 * ignition-debuginfo-2.21.0-160000.3.1 * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) * ignition-2.21.0-160000.3.1

Topics%20covered

Topics Covered

security advisory SuSE important authorization bypass ignition cve-2026-33186

References

* bsc#1260251

Cross-

* CVE-2026-33186

CVSS scores:

* CVE-2026-33186 ( SUSE ): 8.6

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

* CVE-2026-33186 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

* CVE-2026-33186 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:

* SUSE Linux Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-33186.html

* https://bugzilla.suse.com/show_bug.cgi?id=1260251

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:21370-1
Release Date: 2026-04-22T09:58:26Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important authorization bypass ignition cve-2026-33186

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