Is CVE-2026-92971 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-92971 being exploited in the wild.

How severe is CVE-2026-92971?

High severity, with a CVSS score of 7.5, published 17 September 2026.

Which products and versions are affected?

InternLM LMDeploy through 0.17.0.

Is there a fix for CVE-2026-92971?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-92971 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-92971?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-92971: InternLM LMDeploy assertion failure in DistServe decode migration

CVE-2026-92971 · Severity: high · CVSS 7.5 · Published 2026-09-17

InternLM LMDeploy is a toolkit for deploying and serving large language models (LLMs). The DistServe decode migration feature can be crashed by unauthenticated attackers, causing the inference engine to terminate and rendering the service unavailable to all users. This denial-of-service attack requires no authentication and can be triggered remotely.

Quick answers

Is CVE-2026-92971 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-92971 being exploited in the wild.
How severe is CVE-2026-92971?: High severity, with a CVSS score of 7.5, published 17 September 2026.
Which products and versions are affected?: InternLM LMDeploy through 0.17.0.
Is there a fix for CVE-2026-92971?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-92971 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-92971?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a reachable assertion error in the DistServe decode migration loop within the engine_loop.py component. An attacker can send a migration_request with an empty remote_block_ids list, which triggers an AssertionError that crashes the engine loop process. The vulnerability is network-reachable and requires no authentication. Successful exploitation causes an immediate denial of service, as the crashed engine loop prevents all subsequent inference requests from being processed. A patch is likely available in versions after 0.17.0.

Affected products

InternLM LMDeploy through 0.17.0

Timeline

2026-09-17: disclosed

References

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