CVE-2026-92971

InternLM LMDeploy through 0.17.0 contains a reachable assertion vulnerability in the DistServe decode migration loop that allows unauthenticated attackers to terminate the inference engine. Attackers can submit a migration_request with an empty remote_block_ids list to trigger an AssertionError that crashes the engine loop and causes subsequent inference requests to fail.

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/InternLM/lmdeploy
https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py#L560-L564
https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py#L187-L214
https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py#L130-L136
https://github.com/InternLM/lmdeploy/issues/4965
https://www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service
https://github.com/InternLM/lmdeploy/issues/4965

Configurations

No configuration.

History

17 Sep 2026, 15:17

Type	Values Removed	Values Added
References	~~() https://github.com/InternLM/lmdeploy/issues/4965 -~~	() https://github.com/InternLM/lmdeploy/issues/4965 -

17 Sep 2026, 14:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 14:18

Updated : 2026-09-17 15:17

NVD link : CVE-2026-92971

Mitre link : CVE-2026-92971

CVE.ORG link : CVE-2026-92971

JSON object : View

Products Affected

No product.

CWE

CWE-617

Reachable Assertion

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