CVE-2026-111160: high-severity vulnerability in ModelTC LightLLM
LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
Published · Updated
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41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.4%
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.
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
Affected products
ModelTC · LightLLMpublic PoCs found — 1
cve_referencegithub.com/ModelTC/LightLLM/issues/1629unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — ModelTC LightLLM
In the same product, most dangerous first.
CVE-2026-96560CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via NCCL PD RPyC Control ChannelEPSS 1.2%CVE-2026-90919CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle DeserializationEPSS 1.1%CVE-2026-103040CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC ServiceEPSS 1.0%CVE-2026-26220CRITICALLightLLM <= 1.1.0 PD Mode Unsafe Deserialization RCEEPSS 1.0%CVE-2026-103041CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC ServiceEPSS 0.8%CVE-2026-93839CRITICALLightLLM through 1.2.0 Missing Authentication in PD Master /pd_register WebSocket EndpointEPSS 0.8%
References
https://github.com/ModelTC/LightLLMhttps://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_lightllm.py#L37-L43https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/core/objs/sampling_params.py#L356-L357https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485https://github.com/ModelTC/LightLLM/issues/1629https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization