CVE-2026-26220: falha crítica em ModelTC LightLLM
LightLLM <= 1.1.0 PD Mode Unsafe Deserialization RCE
Publicada em · Atualizada em
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28Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 9.3epss 1.0%
LightLLM version 1.1.0 and prior contain an unauthenticated remote code execution vulnerability in PD (prefill-decode) disaggregation mode. The PD master node exposes WebSocket endpoints that receive binary frames and pass the data directly to pickle.loads() without authentication or validation. A remote attacker who can reach the PD master can send a crafted payload to achieve arbitrary code execution.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Produtos afetados
ModelTC · LightLLMCVEs relacionadas — ModelTC LightLLM
No mesmo produto, das mais perigosas para as menos.
CVE-2026-96560CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via NCCL PD RPyC Control ChannelEPSS 1.2%CVE-2026-90919CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle DeserializationEPSS 1.1%CVE-2026-103040CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC ServiceEPSS 1.0%CVE-2026-103041CRITICALLightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC ServiceEPSS 0.8%CVE-2026-93839CRITICALLightLLM through 1.2.0 Missing Authentication in PD Master /pd_register WebSocket EndpointEPSS 0.8%CVE-2026-103042HIGHLightLLM through 1.2.0 Unauthenticated Memory Exhaustion via NCCL Control Channel set_valueEPSS 0.6%
Referências
https://chocapikk.com/posts/2026/lightllm-pickle-rce/https://github.com/ModelTC/lightllm/blob/a27dfc88c2144ed51a6e160b6fbe20aad66c8fe0/lightllm/server/api_http.py#L310https://github.com/ModelTC/lightllm/blob/a27dfc88c2144ed51a6e160b6fbe20aad66c8fe0/lightllm/server/api_http.py#L331https://github.com/ModelTC/LightLLM/issues/1213https://lightllm-en.readthedocs.io/en/latest/index.htmlhttps://www.vulncheck.com/advisories/lightllm-pd-mode-unsafe-deserialization-rce