LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Visual-Only RPyC Service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.
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 pass objects with __reduce__ methods to execute arbitrary code with service account privileges.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-103395
- 2026-10-03 Alias added: GHSA-mw2v-h3wh-mp72
References
More ModelTC vulnerabilities
- TI-2026-65562 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC Service CVSS 4.0CRITICAL 9.3
- TI-2026-65561 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Router Profiler RPyC Service CVSS 4.0CRITICAL 9.3
- TI-2026-63189 LightLLM through 1.2.0 Missing Authentication in PD Master /pd_register WebSocket Endpoint CVSS 4.0CRITICAL 9.3
- TI-2026-61785 LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Config Server Pickle Deserialization CVSS 4.0CRITICAL 9.3
- TI-2026-21211 LightLLM <= 1.1.0 PD Mode Unsafe Deserialization RCE CVSS 4.0CRITICAL 9.3
- TI-2026-74944 Unauthenticated denial of service in LightLLM via pd_kv_trans_params CVSS 4.0HIGH 8.7
Sources
- CVE-2026-103395 · CVE Program
- CVE-2026-103395 · NVD
- FIRST EPSS
- GHSA-mw2v-h3wh-mp72 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences