High severity · published Oct 15, 2026
CVE-2026-111160
LightLLM through 1.2.0 Unauthenticated DoS via pd_kv_trans_params Deserialization
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
LightLLM · ModelTC
through 1.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-111160
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-111160
github.com
https://github.com/ModelTC/LightLLM
github.com
https://github.com/ModelTC/LightLLM/issues/1629
github.com
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_lightllm.py#L37-L43
github.com
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/core/objs/sampling_params.py#L356-L357
github.com
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/router/model_infer/infer_batch.py#L484-L485
www.vulncheck.com
https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-dos-via-pd-kv-trans-params-deserialization
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