CVE-2025-3048

Path Traversal in AWS SAM CLI allows file copy to local cache

State: Published
Severity: 6.9 Medium
Published: Mar 31, 2025
Updated: Oct 14, 2025
Reserved: Mar 31, 2025

Description

After completing a build with AWS Serverless Application Model Command Line Interface (SAM CLI) which include symlinks, the content of those symlinks are copied to the cache of the local workspace as regular files or directories. As a result, a user who does not have access to those symlinks outside of the Docker container would now have access via the local workspace.

Users should upgrade to version 1.134.0 and ensure any forked or derivative code is patched to incorporate the new fixes. After upgrading, users must re-build their applications using the sam build --use-container to update the symlinks.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	AMZN
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	AMZN

Weaknesses

CWE-61 UNIX Symbolic Link (Symlink) Following

Affected Products

Product	Versions
AWS Serverless Application Model Command Line InterfaceAWS	1.9.0 to before 1.134.0Affected

References

https://aws.amazon.com/security/security-bulletins/AWS-2025-008/vendor-advisory
https://github.com/aws/aws-sam-cli/security/advisories/GHSA-pp64-wj43-xqcrthird-party-advisory
https://github.com/aws/aws-sam-cli/releases/tag/v1.134.0patch

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