ALAS2023-2026-1952: amazon-ssm-agent security update

ALAS2023-2026-1952, released July 20, 2026, fixes 9 CVEs in amazon-ssm-agent (version 3.3.4624.0-1.amzn2023). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0691

94th percentile

Priority of the 9 CVEs

Patch now 0
                                Urgent 0
                                High 8
                                Routine 1

Fixed package versions

Product	Release	Fixed in
amazon-ssm-agent	amzn 2023	3.3.4624.0-1.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-42508	Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts	9.1	0.0691	None reported
High	CVE-2026-39830	Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh	9.1	0.0068	None reported
High	CVE-2026-39834	Invoking infinite loop on large channel writes in golang.org/x/crypto/ssh	9.1	0.0060	None reported
High	CVE-2026-39835	Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh	8.7	0.0050	None reported
High	CVE-2026-39831	Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh	9.1	0.0048	None reported
High	CVE-2026-46597	Invoking byte arithmetic causes underflow and panic in golang.org/x/crypto/ssh	7.5	0.0047	None reported
High	CVE-2026-39829	Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh	8.7	0.0047	None reported
High	CVE-2026-41506	golang-github-go-git-go-git: go-git is an extensible git implementation library written in pure Go	7.4	0.0026	None reported
Routine	CVE-2026-39827	Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh	6.5	0.0028	None reported

Also fixes CVE-2026-42508

SUSE-SU-2026:22558-1
google-osconfig-agent on sles 16.0
OPENSUSE-SU-2026:21210-1
google-osconfig-agent on opensuse-leap 16.0
SUSE-SU-2026:2612-1
google-guest-agent on sles 15.6, sles 15.7
OPENSUSE-SU-2026:21436-1
rclone on opensuse-leap 16.0
SUSE-SU-2026:23625-1
govulncheck-vulndb on sles 16.0
OPENSUSE-SU-2026:21761-1
govulncheck-vulndb on opensuse-leap 16.0
OPENSUSE-SU-2026:21824-1
containerized-data-importer1.65 on opensuse-leap 16.0
SUSE-SU-2026:4209-1
containerized-data-importer on sles 15.7

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1952.html

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