{"schema":"threatline.record/2","record":{"id":"CVE-2026-107204","aliases":[],"summary":"LMCache through 0.5.5 Unauthenticated RCE via /run_script Endpoint","details":"LMCache through 0.5.5 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute Python code by posting scripts to the /run_script endpoint. Attackers can recover real builtins through the injected FastAPI app object, bypassing the guarded __import__, to import os and run operating system commands as the LMCache process.","categories":["Unclassified"],"product":"LMCache","vendor":"LMCache","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-107204","source_modified_at":"2026-10-07T17:09:21.989Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"LMCache","vendor":"LMCache","versions":[{"version":"0","status":"affected","versionType":"semver","lessThanOrEqual":"0.5.5"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.3,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00768,"percentile":0.55096,"score_date":"2026-10-23"},"published_at":"2026-10-07T15:24:03.214Z","modified_at":"2026-10-07T17:09:21.989Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-107204","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T17:09:21.989Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-107204","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/LMCache/LMCache/issues/5510","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/LMCache/LMCache","tags":["product"]},{"source":"CVE List","url":"https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/internal_api_server/common/run_script_api.py#L54-L76","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/multiprocess/http_apis/common_api.py#L41-L46","tags":["technical-description"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/lmcache-through-0.5.5-unauthenticated-rce-via-run-script-endpoint","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"total","assessed_at":"2026-10-07T17:08:57.542279Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T17:09:21.989Z","content_hash":"86c725bb6befc343c42de4e02099b75a62aa030a024d0f320c28dcfb7e512a34"}}