{"id":"CVE-2026-103270","summary":"LightLLM through 1.2.0 Missing Authentication on RL Control Routes","details":"LightLLM through 1.2.0 mounts reinforcement learning control routes on the public HTTP API without authentication checks. Unauthenticated attackers can call endpoints like /pause_generation, /abort_request, /flush_cache, and /init_weights_update_group to disrupt inference operations and wedge workers on deployments started with --enable_rl.","modified":"2026-10-02T03:47:25.720598367Z","published":"2026-09-30T14:48:55.071Z","database_specific":{"cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103270.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103270.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103270"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-missing-authentication-on-rl-control-routes"},{"type":"REPORT","url":"https://github.com/ModelTC/LightLLM/issues/1609"},{"type":"PACKAGE","url":"https://github.com/ModelTC/LightLLM"},{"type":"PACKAGE","url":"https://github.com/ModelTC/lightllm"},{"type":"ARTICLE","url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_http.py#L505-L507"},{"type":"ARTICLE","url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_http_rl.py#L51-L139"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/modeltc/lightllm","events":[{"introduced":"0"},{"fixed":"65c174ee95ac6a6fd36b18b63d0b33d97e76b770"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.2.0"},{"fixed":"1.2.0"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v1.1.0","v1.0.1","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103270.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}