# ALAS2023-2026-1813: amazon-ssm-agent security update

ALAS2023-2026-1813, released June 8, 2026, fixes 2 CVEs in amazon-ssm-agent (version 3.3.4515.0-1.amzn2023). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/alas2023-2026-1813
- Platform: Linux
- Released: Jun 8, 2026
- Priority: High (Closes CVE-2026-81849, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://alas.aws.amazon.com/AL2023/ALAS-2026-1813.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [amazon-ssm-agent](https://patchblox.com/security/data/product/linux/amazon-ssm-agent.md) | amzn 2023 | 3.3.4515.0-1.amzn2023 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-81849](https://patchblox.com/security/data/cve/CVE-2026-81849.md) | High | amazon-ssm-agent: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-81849: 	Improper... | n/a | 0.0090 |  |
| [CVE-2026-33814](https://patchblox.com/security/data/cve/CVE-2026-33814.md) | High | Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net | 7.5 | 0.0084 |  |

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Data as of 2026-11-09T13:31:49Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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