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.
History

Fri, 23 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Modeltc
Modeltc lightllm
Vendors & Products Modeltc
Modeltc lightllm

Wed, 21 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-15T18:57:48.390Z

Updated: 2026-10-21T01:24:32.515Z

Reserved: 2026-10-15T17:04:03.418Z

Link: CVE-2026-111160

cve-icon Vulnrichment

Updated: 2026-10-21T01:24:27.556Z

cve-icon NVD

Status : Deferred

Published: 2026-10-15T19:17:31.100

Modified: 2026-10-21T02:17:04.597

Link: CVE-2026-111160

cve-icon Redhat

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