CVE-2025-3047
Path Traversal in AWS SAM CLI allows file copy to build container
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Path Traversal in AWS SAM CLI allows file copy to build container
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
- Record
CVE-2025-3047- CVSS 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 - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-61
- Updated
- 2026-11-02
EUVDEUVD-2025-8754
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
- Record
EUVD-2025-8754- CVSS 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-px37-jpqx-97q9
AWS SAM CLI Path Traversal allows file copy to build container
Summary
The AWS Serverless Application Model Command Line Interface (AWS SAM CLI) is an open-source CLI tool that helps Lambda developers to build and develop Lambda applications locally on their computers using Docker.
When running the AWS SAM CLI build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
Impact
This issue is limited to the local workspace and does not affect AWS services, production environments or cross-account resources. The issue only affects local workspaces using AWS SAM CLI with container builds (--use-container), potentially allowing access to local files outside the build directory through the usage of symlinks.
Impacted versions: <= AWS SAM CLI v1.132.0
Patches
The issue has been addressed in version 1.133.0. Users should upgrade and ensure any forked or derivative code is patched to incorporate the new fixes. To retain the previous behavior and allow symlinks to resolve on the host machine, please use the explicit '--mount-symlinks' parameter.
Workarounds
There is no recommended work around. Customers are advised to upgrade to version v1.133.0 or the latest version.
References
CVE-2025-3047
If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.
Credit
We would like to thank Kevin Backhouse with the GitHub Security Lab for collaborating on this issue through the coordinated vulnerability disclosure process.
- Record
GHSA-px37-jpqx-97q9- CVSS 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 - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-22, CWE-61
- Updated
- 2026-11-02
NVD
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
- Record
CVE-2025-3047- CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-61
- Updated
- 2026-11-02
OSV
Path Traversal in AWS SAM CLI allows file copy to build container
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
- Record
CVE-2025-3047- CVSS 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 - Weakness
- CWE-61
- Updated
- 2026-11-02
OSVGHSA-px37-jpqx-97q9
AWS SAM CLI Path Traversal allows file copy to build container
Summary
The AWS Serverless Application Model Command Line Interface (AWS SAM CLI) is an open-source CLI tool that helps Lambda developers to build and develop Lambda applications locally on their computers using Docker.
When running the AWS SAM CLI build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
Impact
This issue is limited to the local workspace and does not affect AWS services, production environments or cross-account resources. The issue only affects local workspaces using AWS SAM CLI with container builds (--use-container), potentially allowing access to local files outside the build directory through the usage of symlinks.
Impacted versions: <= AWS SAM CLI v1.132.0
Patches
The issue has been addressed in version 1.133.0. Users should upgrade and ensure any forked or derivative code is patched to incorporate the new fixes. To retain the previous behavior and allow symlinks to resolve on the host machine, please use the explicit '--mount-symlinks' parameter.
Workarounds
There is no recommended work around. Customers are advised to upgrade to version v1.133.0 or the latest version.
References
CVE-2025-3047
If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.
Credit
We would like to thank Kevin Backhouse with the GitHub Security Lab for collaborating on this issue through the coordinated vulnerability disclosure process.
- Record
GHSA-px37-jpqx-97q9- CVSS 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 - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-22, CWE-61
- Updated
- 2026-11-02
OSVPYSEC-2026-1207
AWS SAM CLI Path Traversal allows file copy to build container
Summary
The AWS Serverless Application Model Command Line Interface (AWS SAM CLI) is an open-source CLI tool that helps Lambda developers to build and develop Lambda applications locally on their computers using Docker.
When running the AWS SAM CLI build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
Impact
This issue is limited to the local workspace and does not affect AWS services, production environments or cross-account resources. The issue only affects local workspaces using AWS SAM CLI with container builds (--use-container), potentially allowing access to local files outside the build directory through the usage of symlinks.
Impacted versions: <= AWS SAM CLI v1.132.0
Patches
The issue has been addressed in version 1.133.0. Users should upgrade and ensure any forked or derivative code is patched to incorporate the new fixes. To retain the previous behavior and allow symlinks to resolve on the host machine, please use the explicit '--mount-symlinks' parameter.
Workarounds
There is no recommended work around. Customers are advised to upgrade to version v1.133.0 or the latest version.
References
CVE-2025-3047
If you have any questions or comments about this advisory we ask that you contact AWS/Amazon Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.
Credit
We would like to thank Kevin Backhouse with the GitHub Security Lab for collaborating on this issue through the coordinated vulnerability disclosure process.
- Record
PYSEC-2026-1207- CVSS 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 - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
aws-sam-cliPyPI |
before 1.133.0 | 1.133.0 |
aws-sam-cliPyPI |
before 1.133.0, plus listed versions 0.10.00.11.00.12.00.13.00.14.0 Show 45 moreShow less0.14.10.14.20.15.00.16.00.16.10.17.00.18.00.19.00.20.00.20.10.21.00.22.00.23.00.3.00.30.00.31.00.31.10.32.00.33.10.34.00.35.00.36.00.37.00.38.00.39.00.4.00.40.00.41.00.42.00.43.00.44.00.45.00.46.00.46.10.46.20.47.00.48.00.49.00.5.00.50.00.51.00.52.00.53.00.6.00.6.1 |
1.133.0 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | murataydemir/AWS-SAM-CLI-Vulnerabilities | 2025-04-02 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-3047 is a medium vulnerability (CVSS 6.9) in Aws Serverless Application Model Command Line Interface, published March 31, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in aws-sam-cli 1.133.0.
References
aws.amazon.com/security/security-bulletins/AWS-2025-008
github.com/aws/aws-sam-cli/security/advisories/GHSA-px37-jpqx-97q9
nvd.nist.gov/vuln/detail/CVE-2025-3047
pypi.org/project/aws-sam-cli
Left out here: 154 versions. The JSON record has them.