CVE-2026-111160CWE-502insecure-deserialization

CVE-2026-111160

High · published October 15, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
35.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00418 · 35.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-10-15T23:17Z
References (6)
https://github.com/ModelTC/LightLLM · [email protected]https://github.com/ModelTC/LightLLM/issues/1629 · [email protected]https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_lightllm.py#L37-L43 · [email protected]https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/core/objs/sampling_params.py#L356-L357 · [email protected]https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485 · [email protected]https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 15 OCT 18:57Z
    LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
    cvelistv5
  • 15 OCT 18:57Z
    LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
    cvelistv5