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SUSE 2026 Ignition Critical Authorization Bypass CVE-2026-33186 Exploit

suse
Calendar Grey April 8, 2026
Dist Suse Esm H88
SUSE releases security update for ignition addressing authorization bypass issue through CVE-2026-33186 and recommends patching.
An update that solves one vulnerability can now be installed.

Summary

## This update for ignition fixes the following issue: * CVE-2026-33186: google.golang.org/grpc: 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 Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1208=1 * SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1208=1 ## Package List: * SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64) * ignition-debuginfo-2.15.0-150400.4.14.1 * ignition-dracut-grub2-2.15.0-150400.4.14.1 * ignition-2.15.0-150400.4.14.1

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 Micro 5.4

* SUSE Linux Enterprise Micro for Rancher 5.4

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-2026:1208-1
Release Date: 2026-04-08T07:12:24Z
Rating: important

Topics%20covered

Topics Covered

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

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