CVE-2026-111160
CVE-2026-111160 · LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 8.7 · High · EPSS 0.4%
- Published
- Updated
Affected products and versions
lightllm
- Versions
- ≥ 0, ≤ 1.2.0: Affected (semver)
No fix published
Original sources
- https://github.com/ModelTC/LightLLM/issues/1629
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_lightllm.py#L37-L43
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/core/objs/sampling_params.py#L356-L357
- https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485
- https://github.com/ModelTC/LightLLM
- https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization
- https://nvd.nist.gov/vuln/detail/CVE-2026-111160