{"identifier":"CVE-2025-65200","cve":{"id":"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.","published":"2026-10-22T19:17:32.260000+00:00","modified":"2026-10-29T02:16:42.417000+00:00","status":"Awaiting Analysis","score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cvss_version":"3.1","affected":[],"weaknesses":["CWE-79"],"references":[{"url":"http://localstack.com","source":"cve@mitre.org"},{"url":"https://cyberroute.github.io/post/2025-12-11-localstack-hack/","source":"cve@mitre.org"},{"url":"https://github.com/localstack/localstack/blob/aba1ee84592d76f0a88dd286fcd83b65080e31ac/localstack-core/localstack/services/cloudformation/deploy_ui.py","source":"cve@mitre.org"},{"url":"https://github.com/localstack/localstack/pull/13293/","source":"cve@mitre.org"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","baseScore":9.6,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":6.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-29T01:56:31.906089Z","id":"CVE-2025-65200","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[],"source":"nvd","retrieved_at":"2026-10-29T05:29:38.379494+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Critical technical severity","reasons":["CVSS is at least 9.0; exploitation is not established by severity alone."]},"epss":{"probability":0.00551,"percentile":0.46017,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"localstack.com","source_url":"http://localstack.com","investigate_url":"https://investigate.aeglixmind.com/#localstack.com"},{"domain":"cyberroute.github.io","source_url":"https://cyberroute.github.io/post/2025-12-11-localstack-hack/","investigate_url":"https://investigate.aeglixmind.com/#cyberroute.github.io"},{"domain":"github.com","source_url":"https://github.com/localstack/localstack/blob/aba1ee84592d76f0a88dd286fcd83b65080e31ac/localstack-core/localstack/services/cloudformation/deploy_ui.py","investigate_url":"https://investigate.aeglixmind.com/#github.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2025-65200","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2025-65200","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2025-65200","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}