Bug 2533580 (CVE-2026-90878) - CVE-2026-90878 vllm: vLLM: Denial of Service via Jinja Template Rendering
Summary: CVE-2026-90878 vllm: vLLM: Denial of Service via Jinja Template Rendering
Keywords:
Status: NEW
Alias: CVE-2026-90878
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 04:31 UTC by OSIDB Bzimport
Modified: 2026-09-24 12:15 UTC (History)
4 users (show)

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

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Description OSIDB Bzimport 2026-09-15 04:31:18 UTC 
A vulnerability was determined in vllm-project vLLM up to 0.27.1. This affects an unknown part of the file /v1/chat/completions of the component Jinja Template Rendering. This manipulation of the argument chat_template causes resource consumption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.
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