---
id: CVE-2026-103395
title: >-
  LightLLM through 1.2.0 visual_only deployments expose an unauthenticated RPyC
  service with allow_pickle enabled that deserializes attacker-supplied
  arguments in the remote_infer_images method
summary: >-
  LightLLM through 1.2.0 visual_only deployments expose an unauthenticated RPyC
  service with allow_pickle enabled that deserializes attacker-supplied
  arguments in the remote_infer_images method. Attackers can reach the visual
  RPyC port and…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-502
vendor: ModelTC
product: LightLLM
affected:
  - LightLLM <= 1.2.0
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T15:22:27.867'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103395'
references:
  - url: 'https://github.com/ModelTC/LightLLM'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/ModelTC/LightLLM/issues/1610'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/objs.py#L6-L11
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/visual_only_manager.py#L138-L140
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-visual-only-rpyc-service
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-30T15:07:05.377Z'
---

## Overview

LightLLM through 1.2.0 visual_only deployments expose an unauthenticated RPyC service with allow_pickle enabled that deserializes attacker-supplied arguments in the remote_infer_images method. Attackers can reach the visual RPyC port and pass objects with __reduce__ methods to execute arbitrary code with service account privileges.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.