CVE-2026-103041

CRITICAL 9.8

LightLLM through 1.2.0 Unauthenticated Remote Code Execution via Embed Cache RPyC Service

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

LightLLM through 1.2.0 multimodal deployments expose an unauthenticated RPyC cache service with pickle deserialization enabled on all interfaces. Attackers can send crafted serialized objects to exposed cache methods to execute arbitrary code with service privileges.

CWE	CWE-502
Vendor	modeltc
Product	lightllm
Published	Sep 29, 2026

Stay Ahead of the Next One

Get instant alerts for modeltc lightllm

Be the first to know when new critical vulnerabilities affecting modeltc lightllm are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ModelTC / LightLLM

0 ≤ 1.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ModelTC/LightLLM/issues/1596 github.com: https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/embed_cache/manager.py#L29-L31 github.com: https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/embed_cache/manager.py#L66 github.com: https://github.com/ModelTC/LightLLM vulncheck.com: https://www.vulncheck.com/advisories/lightllm-through-1.2.0-unauthenticated-remote-code-execution-via-embed-cache-rpyc-service

Credits

Mingkai Yu Jiapeng Li Jiajia Liu