CVE-2026-92983 InternLM LMDeploy through 0.17.0 Memory Exhaustion via Session ID Mismatch
Unauthenticated attackers can exhaust memory in InternLM LMDeploy's DistServe mode by sending requests that leak scheduler sessions, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92983?
CVE-2026-92983 is a high-severity denial of service vulnerability in InternLM lmdeploy, published on 17 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-772
Which versions are affected by CVE-2026-92983?
How do I fix CVE-2026-92983?
No fix has been published for CVE-2026-92983 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-92983 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-92983 exists.
Sources
Also known as GHSA-p3qj-xm37-gqqf.