Critical severity · published Sep 30, 2026
CVE-2026-103395
LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Visual-Only RPyC Service
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% 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-2026-103395
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103395
issue-tracking
https://github.com/ModelTC/LightLLM/issues/1610
technical-description
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/objs.py#L6-L11
technical-description
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/visualserver/visual_only_manager.py#L138-L140
product
https://github.com/ModelTC/LightLLM
third-party-advisory
https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-visual-only-rpyc-service
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