{"id":"CVE-2026-96560","revision":"ff8a25b572984154b823250aad13cbf0","records":[{"revision":"ff8a25b572984154b823250aad13cbf0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-96560","aliases":[],"title":"LightLLM through 1.2.0 Unauthenticated Remote Code Execution via NCCL PD RPyC Control Channel","description":"LightLLM through 1.2.0 contains a remote code execution vulnerability in the KV-transfer worker when started with --pd_trans_mode nccl, which exposes an unauthenticated RPyC control channel that deserializes attacker-supplied data. Attackers can send malicious pickled objects to the exposed RPyC ThreadedServer to execute arbitrary code with the privileges of the LightLLM service account.","state":0,"publishedAt":"2026-09-23T13:32:38.336+00:00","modifiedAt":"2026-09-24T14:23:23.635+00:00","affected":[{"ecosystem":"Vendor product","name":"LightLLM","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ModelTC\",\n                    \"product\": \"LightLLM\",\n                    \"packageName\": \"LightLLM\",\n                    \"repo\": \"https://github.com/ModelTC/lightllm\",\n                    \"packageURL\": \"pkg:github/ModelTC/lightllm\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"1.2.0\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/ModelTC/LightLLM/issues/1590","https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_backend/pd/nccl_kv_transporter.py#L437-L461","https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_backend/pd/nccl_kv_transporter.py#L411-L415","https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_backend/pd/nccl_kv_transporter.py#L247-L249","https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/mode_backend/pd/kv_transporter.py#L20-L36","https://github.com/ModelTC/lightllm","https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-nccl-pd-rpyc-control-channel"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-96560","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-96560","identifiers":["CVE-2026-96560"]},"retained":false,"historicalAffected":[]}],"coverage":[]}