CVE-2025-3048 MEDIUM

CVE-2025-3048: Path Traversal in AWS SAM CLI allows file copy to local cache

Vendor Aws
Product AWS Serverless Application Model Command Line Interface
Weakness CWE-61
Published March 31, 2025
Last update October 14, 2025

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 31, 2025 CVE published
October 14, 2025 Record updated