AI Threat Alert

CVE-2026-92971

HIGH
Published September 17, 2026

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...

Full CISO analysis pending enrichment.

How severe is it?

CVSS 3.1
7.5 / 10
EPSS
0.5%
chance of exploitation in 30 days
Higher than 41% of all CVEs
Source: EPSS v3 — FIRST.org
Exploitation Status
No known exploitation
Sophistication
N/A

What is the attack surface?

AV AC PR UI S C I A
AV Network
AC Low
PR None
UI None
S Unchanged
C None
I None
A High

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is 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.

Is CVE-2026-92971 actively exploited?

No confirmed active exploitation of CVE-2026-92971 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-92971?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-92971?

CVE-2026-92971 has a CVSS v3.1 base score of 7.5 (HIGH). The EPSS exploitation probability is 0.49%.

What are the technical details?

Original Advisory

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.

Weaknesses (CWE)

CWE-617 Reachable Assertion CWE-617 Reachable Assertion

CWE-617 — Reachable Assertion: The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

  • [Implementation] Make sensitive open/close operation non reachable by directly user-controlled data (e.g. open/close resources)
  • [Implementation] Perform input validation on user data.

Source: MITRE CWE corpus.

CVSS Vector

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

References

Timeline

Published
September 17, 2026
Last Modified
September 17, 2026
First Seen
September 17, 2026
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