Vulnerability in Internlm Lmdeploy
CVE-2026-92983
InternLM LMDeploy through 0.17.0 in DistServe prefill/decode disaggregation mode fails to release scheduler sessions because the proxy uses user-facing session IDs instead of internal scheduler keys. Unauthenticated attackers can send completion requests to the proxy endpoint that accumulate unreleased scheduler metadata and memory until the prefill worker is out-of-memory killed.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/InternLM/lmdeploy/issues/4967 (issue-tracking)
- github.com/InternLM/lmdeploy (product)
- github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/disagg/conn/engine_c… (technical-description)
- www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-memory-exhaustion… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92983?
- CVE-2026-92983 is a high-severity vulnerability in Internlm Lmdeploy, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2026-09-17.
- How severe is CVE-2026-92983?
- High severity. CVSS v3 base score is 7.5 out of 10.