SEPTEMBER 18, 2026
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Case File

CVE-2026-81849

HIGH · CVSS 8.8 EPSS 0.57% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The aws:downloadContent plugin in amazon-ssm-agent versions prior to 3.3.4515.0 is vulnerable due to improper pathname limitations, allowing authenticated remote users to write arbitrary files outside the designated download directory with root privileges. This could lead to arbitrary code execution if sensitive files are overwritten. Organizations using this plugin should prioritize upgrading to version 3.3.4515.0 or later to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
arbitrary code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-81849
Severity
HIGH
CVSS
8.8
EPSS
0.57%

Original NVD Description

Improper limitation of a pathname to a restricted directory in the aws:downloadContent plugin in amazon-ssm-agent before 3.3.4515.0 might allow an authenticated remote user whose ssm:SendCommand permission is restricted to the AWS-DownloadContent document, to write arbitrary files outside the intended download directory with root privileges, via crafted object keys in the S3 source the document is directed to retrieve. This issue may lead to arbitrary code execution as root if specific sensitive files are overwritten. To remediate this issue, customers should upgrade amazon-ssm-agent to version 3.3.4515.0 or later.