SUSE-SU-2026:4270-1: important: Security update for google-guest-agent
SLE-UPDATES
null at suse.de
Mon Sep 21 12:35:02 UTC 2026
# Security update for google-guest-agent
Announcement ID: SUSE-SU-2026:4270-1
Release Date: 2026-09-21T07:29:56Z
Rating: important
References:
* bsc#1253357
* bsc#1260264
* bsc#1272118
* bsc#1278597
* bsc#1278967
* bsc#1279297
* bsc#1279414
Cross-References:
* CVE-2026-33186
* CVE-2026-56852
* CVE-2026-56854
* CVE-2026-56855
* CVE-2026-78662
* CVE-2026-84303
* CVE-2026-84304
* CVE-2026-84445
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
* 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
* CVE-2026-56852 ( SUSE ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-56852 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-56852 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-56854 ( 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-2026-56854 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-56854 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
* CVE-2026-56855 ( 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-2026-56855 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-56855 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-78662 ( 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-2026-78662 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
* CVE-2026-78662 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
* CVE-2026-84303 ( SUSE ): 9.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-84303 ( SUSE ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-84303 ( NVD ): 6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/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-2026-84304 ( 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-2026-84304 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-84304 ( NVD ): 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/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-2026-84445 ( 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-2026-84445 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-84445 ( NVD ): 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/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
Affected Products:
* Public Cloud Module 15-SP4
* Public Cloud Module 15-SP5
* Public Cloud Module 15-SP6
* Public Cloud Module 15-SP7
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise Micro 5.5
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP7
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
* SUSE Linux Enterprise Server for SAP Applications 15 SP7
* SUSE Manager Proxy 4.3
* SUSE Manager Retail Branch Server 4.3
* SUSE Manager Server 4.3
An update that solves eight vulnerabilities can now be installed.
## Description:
This update for google-guest-agent fixes the following issues:
* CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper
validation of the HTTP/2 :path pseudo- header (bsc#1260264).
* CVE-2026-56852: golang.org/x/text/unicode/norm: infinite loop on
truncated/invalid UTF-8 input (bsc#1272118).
* CVE-2026-56854: golang.org/x/crypto/ssh: source-address critical option not
enforced for non-public-key auth callbacks (bsc#1278597)
* CVE-2026-56855: golang.org/x/crypto/ssh: prevent DoS on deadlocked
established channel (bsc#1278597)
* CVE-2026-78662: golang.org/x/crypto/ssh: prevent DoS on deadlocked undecided
channel (bsc#1278597).
* CVE-2026-84303: google.golang.org/grpc: xDS RBAC HTTP filter implementation
issue allows for bypass of authorization policies via mixed-case or
canonical-case header matches (bsc#1279297).
* CVE-2026-84304: google.golang.org/grpc: heap memory exhaustion via HTTP/2
DATA frame fragmentation (bsc#1279414).
* CVE-2026-84445: google.golang.org/grpc: DoS via crash due to missing
':authority' and 'Host' headers in gRPC-Go xDS servers (bsc#1278967).
Changes for google-guest-agent:
* Updated to version 20260903.01
## 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:
* Public Cloud Module 15-SP4
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-4270
* Public Cloud Module 15-SP5
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP5-2026-4270
* Public Cloud Module 15-SP6
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP6-2026-4270
* SUSE Linux Enterprise Micro 5.5
zypper in -t patch SUSE-SLE-Micro-5.5-2026-4270
* Public Cloud Module 15-SP7
zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP7-2026-4270
## Package List:
* Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64)
* google-guest-agent-20260903.01-150000.1.85.1
* Public Cloud Module 15-SP5 (aarch64 ppc64le s390x x86_64)
* google-guest-agent-20260903.01-150000.1.85.1
* Public Cloud Module 15-SP6 (aarch64 ppc64le s390x x86_64)
* google-guest-agent-20260903.01-150000.1.85.1
* SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
* google-guest-agent-20260903.01-150000.1.85.1
* Public Cloud Module 15-SP7 (aarch64 ppc64le s390x x86_64)
* google-guest-agent-20260903.01-150000.1.85.1
## References:
* https://www.suse.com/security/cve/CVE-2026-33186.html
* https://www.suse.com/security/cve/CVE-2026-56852.html
* https://www.suse.com/security/cve/CVE-2026-56854.html
* https://www.suse.com/security/cve/CVE-2026-56855.html
* https://www.suse.com/security/cve/CVE-2026-78662.html
* https://www.suse.com/security/cve/CVE-2026-84303.html
* https://www.suse.com/security/cve/CVE-2026-84304.html
* https://www.suse.com/security/cve/CVE-2026-84445.html
* https://bugzilla.suse.com/show_bug.cgi?id=1253357
* https://bugzilla.suse.com/show_bug.cgi?id=1260264
* https://bugzilla.suse.com/show_bug.cgi?id=1272118
* https://bugzilla.suse.com/show_bug.cgi?id=1278597
* https://bugzilla.suse.com/show_bug.cgi?id=1278967
* https://bugzilla.suse.com/show_bug.cgi?id=1279297
* https://bugzilla.suse.com/show_bug.cgi?id=1279414
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