CVE-2026-81849

Path traversal in the aws:downloadContent plugin in amazon-ssm-agent

Published: Aug 28, 2026Updated: Aug 31, 2026 Sources: CVE List NVDCWE-23

8.8HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-23

Affected Products

amazon

commercial·US

amazon-ssm-agentSaaS

Cloud & SaaS / cloud-platform

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

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MITRE ATT&CK

1 technique

Discovery

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References

https://github.com/aws/amazon-ssm-agent/releases/tag/3.3.4515.0

github.com

https://aws.amazon.com/security/security-bulletins/2026-091-aws/

aws.amazon.com

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