CVE-2026-92971: InternLM lmdeploy · Reachable Assertion
Affects InternLM lmdeploySource CVE Database V5
Not known to be exploited · CVSS 8.7 High : upgrade to 0.17.1 soon.
Data as of 1 Nov 2026, 11:03 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.17.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Upgrade internlm/lmdeploy to 0.17.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| InternLMlmdeploy | Affected
| Fixed in– |
GitHubinternlm/lmdeploypkg:github/internlm/lmdeployOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, consider implementing input validation or filtering to block migration_request messages with empty remote_block_ids if possible.
Description
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.
References
- github.com/InternLM/lmdeploy/issues/4965 (opens in a new tab)
- github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py (opens in a new tab)
- github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py (opens in a new tab)
- github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py (opens in a new tab)
- github.com/InternLM/lmdeploy (opens in a new tab)
- vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service (opens in a new tab)