---
title: "LightLLM - Denial of Service"
description: "LightLLM through 1.2.0 contains a denial of service vulnerability caused by improper handling of the internal pd_kv_trans_params field in the /generate endpoint, letting unauthenticated attackers crash the inference worker, exploit requires sending a crafted request."
url: https://panop.io/threat-heartbeat/CVE-2026-111160/
---

# CVE-2026-111160 LightLLM - Denial of Service

LightLLM through 1.2.0 contains a denial of service vulnerability caused by improper handling of the internal pd\_kv\_trans\_params field in the /generate endpoint, letting unauthenticated attackers crash the inference worker, exploit requires sending a crafted request.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-111160)

## Details

Type

Denial Of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

15 October 2026

Updated

16 October 2026

Weakness

[CWE-502](https://cwe.mitre.org/data/definitions/502.html)

## Vendor fix

Update to the latest version beyond 1.2.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-111160](https://nvd.nist.gov/vuln/detail/CVE-2026-111160)
- [https://github.com/ModelTC/LightLLM/issues/1629](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/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/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/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485)
- [https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization](https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization)
- [https://github.com/ModelTC/LightLLM](https://github.com/ModelTC/LightLLM)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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