CVE-2026-92983: InternLM lmdeploy · Missing Release of Resource after Effective Lifetime
Affects InternLM lmdeploySource CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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
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
Until a fix is available, consider restricting access to the proxy endpoint to trusted users or networks to reduce exposure to unauthenticated requests that trigger this issue.
Description
CVE-2026-92983 is a high-severity vulnerability in InternLM lmdeploy versions up to 0.17.0. The issue occurs in DistServe prefill/decode disaggregation mode where scheduler sessions are not properly released due to the proxy using user-facing session IDs instead of internal scheduler keys. This allows unauthenticated attackers to send completion requests that cause unreleased scheduler metadata and memory accumulation, potentially leading to out-of-memory termination of the prefill worker.
References
- github.com/InternLM/lmdeploy/issues/4967 (opens in a new tab)
- github.com/InternLM/lmdeploy (opens in a new tab)
- github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/disagg/conn/engine_conn.py (opens in a new tab)
- vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-memory-exhaustion-via-session-id-mismatch (opens in a new tab)