# 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.

- Web page: https://patchblox.com/security/fix/linux/alas2023-2026-1896
- Platform: Linux
- Released: Jun 22, 2026
- Priority: Urgent (Closes CVE-2026-46595, rated Critical)
- CVEs: 7, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2026-1896.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [amazon-cloudwatch-agent](https://patchblox.com/security/data/product/linux/amazon-cloudwatch-agent.md) | amzn 2023 | 1.300067.1-1.amzn2023 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-46595](https://patchblox.com/security/data/cve/CVE-2026-46595.md) | Urgent | Invoking  VerifiedPublicKeyCallback permissions skip enforcement in golang.org/x/crypto/ssh | 10.0 | 0.0056 |  |
| [CVE-2026-42508](https://patchblox.com/security/data/cve/CVE-2026-42508.md) | High | Invoking  auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts | 9.1 | 0.0691 |  |
| [CVE-2026-39830](https://patchblox.com/security/data/cve/CVE-2026-39830.md) | High | Invoking  client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh | 9.1 | 0.0068 |  |
| [CVE-2026-39831](https://patchblox.com/security/data/cve/CVE-2026-39831.md) | High | Invoking  bypass of FIDO/U2F security keys physical interaction in golang.org/x/crypto/ssh | 9.1 | 0.0048 |  |
| [CVE-2026-39833](https://patchblox.com/security/data/cve/CVE-2026-39833.md) | High | Invoking  key constraints not enforced in golang.org/x/crypto/ssh/agent | 9.1 | 0.0047 |  |
| [CVE-2026-39829](https://patchblox.com/security/data/cve/CVE-2026-39829.md) | High | Invoking  pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh | 8.7 | 0.0047 |  |
| [CVE-2026-25680](https://patchblox.com/security/data/cve/CVE-2026-25680.md) | Routine | Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html | 6.5 | 0.0033 |  |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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