{"id":"CVE-2026-111160","summary":"LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization","details":"LightLLM through 1.2.0 contains a denial of service vulnerability that allows unauthenticated attackers to crash the inference worker by supplying the internal pd_kv_trans_params field to the /generate endpoint. Attackers can send a single request whose parameters cause pickle.loads to fail in InferSamplingParams, killing the inference thread while /health stays up and all later requests hang until restart.","modified":"2026-10-17T02:48:26.608314705Z","published":"2026-10-15T18:57:48.390Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-502"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111160.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111160.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111160"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization"},{"type":"REPORT","url":"https://github.com/ModelTC/LightLLM/issues/1629"},{"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_lightllm.py#L37-L43"},{"type":"ARTICLE","url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/core/objs/sampling_params.py#L356-L357"},{"type":"ARTICLE","url":"https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485"}],"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-2026-111160.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"}]}