SUSE-SU-2026:22423-1: important: Security update for google-guest-agent
SLE-SECURITY-UPDATES
null at suse.de
Fri Jul 3 08:38:33 UTC 2026
# Security update for google-guest-agent
Announcement ID: SUSE-SU-2026:22423-1
Release Date: 2026-06-24T16:10:38Z
Rating: important
References:
* bsc#1243254
* bsc#1243505
* bsc#1260264
* bsc#1266171
* bsc#1266603
Cross-References:
* CVE-2026-33186
* CVE-2026-39821
* CVE-2026-39827
* CVE-2026-39828
* CVE-2026-39829
* CVE-2026-39830
* CVE-2026-39831
* CVE-2026-39832
* CVE-2026-39833
* CVE-2026-39834
* CVE-2026-39835
* CVE-2026-42508
* CVE-2026-46595
* CVE-2026-46597
* CVE-2026-46598
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-2026-39821 ( 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-2026-39821 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39821 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-39821 ( NVD ): 9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-39827 ( SUSE ): 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-39827 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39827 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39828 ( 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-2026-39828 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39828 ( NVD ): 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
* CVE-2026-39828 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-39829 ( 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-2026-39829 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39829 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39829 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39830 ( SUSE ): 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-39830 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39830 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
* CVE-2026-39830 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39831 ( 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-2026-39831 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39831 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39832 ( SUSE ): 6.2
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
* CVE-2026-39832 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-39832 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39832 ( NVD ): 8.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
* CVE-2026-39833 ( SUSE ): 8.5
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-39833 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39833 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-39834 ( 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-2026-39834 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39834 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
* CVE-2026-39835 ( 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-2026-39835 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-39835 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2026-39835 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-42508 ( 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-2026-42508 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-42508 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-42508 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-46595 ( 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-2026-46595 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-46595 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
* CVE-2026-46595 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
* CVE-2026-46597 ( 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-2026-46597 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-46597 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-46598 ( 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-2026-46598 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-46598 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products:
* SUSE Linux Micro 6.0
An update that solves 15 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-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only
Punycode-encoded labels allows for validation bypass and privilege
escalation (bsc#1266603).
* CVE-2026-39827: Invoking memory leak when rejecting channels can lead to DoS
in golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39828: Invoking bypass of certificate restrictions in
golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39829: Invoking pathological RSA/DSA parameters may cause DoS in
golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39830: Invoking client can cause server deadlock on unexpected
responses in golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39831: Invoking bypass of FIDO/U2F security keys physical
interaction in golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39832: Invoking agent constraints dropped when forwarding keys in
golang.org/x/crypto/ssh/agent (bsc#1266171).
* CVE-2026-39833: Invoking key constraints not enforced in
golang.org/x/crypto/ssh/agent (bsc#1266171).
* CVE-2026-39834: Invoking infinite loop on large channel writes in
golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-39835: Invoking server panic during CheckHostKey/Authenticate in
golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-42508: Invoking auth bypass via unenforced @revoked status in
golang.org/x/crypto/ssh/knownhosts (bsc#1266171).
* CVE-2026-46595: Invoking VerifiedPublicKeyCallback permissions skip
enforcement in golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-46597: Invoking byte arithmetic causes underflow and panic in
golang.org/x/crypto/ssh (bsc#1266171).
* CVE-2026-46598: Invoking pathological inputs can lead to client panic in
golang.org/x/crypto/ssh/agent (bsc#1266171).
Changes:
* Update to version 20260529.00
* Dependency updates (#616)
* from version 20260522.00
* Fix improper umask calculation on socket creation (#614)
* from version 20260520.01
* Update OWNERS (#609)
* Bump google.golang.org/grpc from 1.75.0 to 1.79.3 (#602) (bsc#1260264,
CVE-2026-33186)
* Update to version 20250506.01 (bsc#1243254, bsc#1243505)
## 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-6.0-768=1
## Package List:
* SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
* google-guest-agent-20260529.00-1.1
* google-guest-agent-debuginfo-20260529.00-1.1
## References:
* https://www.suse.com/security/cve/CVE-2026-33186.html
* https://www.suse.com/security/cve/CVE-2026-39821.html
* https://www.suse.com/security/cve/CVE-2026-39827.html
* https://www.suse.com/security/cve/CVE-2026-39828.html
* https://www.suse.com/security/cve/CVE-2026-39829.html
* https://www.suse.com/security/cve/CVE-2026-39830.html
* https://www.suse.com/security/cve/CVE-2026-39831.html
* https://www.suse.com/security/cve/CVE-2026-39832.html
* https://www.suse.com/security/cve/CVE-2026-39833.html
* https://www.suse.com/security/cve/CVE-2026-39834.html
* https://www.suse.com/security/cve/CVE-2026-39835.html
* https://www.suse.com/security/cve/CVE-2026-42508.html
* https://www.suse.com/security/cve/CVE-2026-46595.html
* https://www.suse.com/security/cve/CVE-2026-46597.html
* https://www.suse.com/security/cve/CVE-2026-46598.html
* https://bugzilla.suse.com/show_bug.cgi?id=1243254
* https://bugzilla.suse.com/show_bug.cgi?id=1243505
* https://bugzilla.suse.com/show_bug.cgi?id=1260264
* https://bugzilla.suse.com/show_bug.cgi?id=1266171
* https://bugzilla.suse.com/show_bug.cgi?id=1266603
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