Bug 2538868 (CVE-2026-94625) - CVE-2026-94625 vllm: vLLM: Resource exhaustion via rejected prefill requests
Summary: CVE-2026-94625 vllm: vLLM: Resource exhaustion via rejected prefill requests
Keywords:
Status: NEW
Alias: CVE-2026-94625
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 20:59 UTC by OSIDB Bzimport
Modified: 2026-09-24 05:43 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-22 20:59:31 UTC 
vLLM through 0.29.0 contains a resource exhaustion vulnerability in MooncakeConnector where rejected prefill requests create ownerless transfer placeholders that are never reclaimed. Attackers can send rejected requests to exhaust sender task pools, causing valid requests to be delayed by up to 480 seconds while health checks continue returning success.
Note You need to log in before you can comment on or make changes to this bug.