Vulnerability 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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- http://localstack.com
- https://cyberroute.github.io/post/2025-12-11-localstack-hack/
- https://github.com/localstack/localstack/blob/aba1ee84592d76f0a88dd286fcd83b6508
- https://github.com/localstack/localstack/pull/13293/
FAQ
What is CVE-2025-65200?
CVE-2025-65200 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 _loca...
How severe is CVE-2025-65200?
CVE-2025-65200 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-65200?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.