ALAS2023-2026-1896: amazon-cloudwatch-agent security update

ALAS2023-2026-1896, released June 22, 2026, fixes 7 CVEs in amazon-cloudwatch-agent (version 1.300067.1-1.amzn2023). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

10.0

Base score, 0 to 10

Highest EPSS

0.0691

94th percentile

Priority of the 7 CVEs

Patch now 0
                                Urgent 1
                                High 5
                                Routine 1

Fixed package versions

Product	Release	Fixed in
amazon-cloudwatch-agent	amzn 2023	1.300067.1-1.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-46595	Invoking VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh	10.0	0.0056	None reported
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-2026-39831	Invoking bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh	9.1	0.0048	None reported
High	CVE-2026-39833	Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent	9.1	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
Routine	CVE-2026-25680	Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html	6.5	0.0033	None reported

Also fixes CVE-2026-46595

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Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1896.html

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