CVE-2026-92971

HIGH 7.5

InternLM LMDeploy through 0.17.0 Assertion Denial of Service

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-617
Vendor	internlm
Product	lmdeploy
Published	Sep 17, 2026
Last Updated	Sep 17, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

InternLM / lmdeploy

0 ≤ 0.17.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Jiapeng Li Jiajia Liu