CVE-2025-65200

Description

An issue was discovered in localstack 4.9.2 allowing attackers to execute arbitrary code via crafted content hosted on a web-accessable URL and when passed said URL in the the templateURL to the _localstack/cloudformation/deploy endpoint, the hosted content can get executed in the context of the docker container.

References

https://github.com/localstack/localstack/pull/13293/

https://github.com/localstack/localstack/blob/aba1ee84592d76f0a88dd286fcd83b65080e31ac/localstack-core/localstack/services/cloudformation/deploy_ui.py

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-211174

https://cyberroute.github.io/post/2025-12-11-localstack-hack/

http://localstack.com

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3