CVE-2026-103270

LightLLM through 1.2.0 mounts reinforcement learning control routes on the public HTTP API without authentication checks. Unauthenticated attackers can call endpoints like /pause_generation, /abort_request, /flush_cache, and /init_weights_update_group to disrupt inference operations and wedge workers on deployments started with --enable_rl.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/ModelTC/LightLLM
https://github.com/ModelTC/LightLLM/issues/1609
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_http.py#L505-L507
https://github.com/ModelTC/lightllm/blob/v1.2.0/lightllm/server/api_http_rl.py#L51-L139
https://www.vulncheck.com/advisories/lightllm-through-1.2.0-missing-authentication-on-rl-control-routes
https://github.com/ModelTC/LightLLM/issues/1609

Configurations

No configuration.

History

30 Sep 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/ModelTC/LightLLM/issues/1609 -~~	() https://github.com/ModelTC/LightLLM/issues/1609 -

30 Sep 2026, 15:22

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 15:22

Updated : 2026-09-30 16:17

NVD link : CVE-2026-103270

Mitre link : CVE-2026-103270

CVE.ORG link : CVE-2026-103270

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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