CVEvulnerability
CVE-2025-65200
9.6 CRITICAL
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-10-22
- Last modified
- 2026-10-29
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-79
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.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- http://localstack.com localstack.com
- https://cyberroute.github.io/post/2025-12-11-localstack-hack/ cyberroute.github.io
- https://github.com/localstack/localstack/blob/aba1ee84592d76f0a88dd286fcd83b65080e31ac/localstack-core/localstack/services/cloudformation/deploy_ui.py github.com
- https://github.com/localstack/localstack/pull/13293/ github.com