CVE-2026-90878
5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vllm-project | vLLM | 0.27.0 | affected |
| vllm-project | vLLM | 0.27.1 | affected |
Weaknesses
- CWE-400: Resource Consumption
- CWE-404: Denial of Service
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/vuln/403472
- https://vuldb.com/vuln/403472/cti
- https://vuldb.com/cve/CVE-2026-90878
- https://vuldb.com/submit/927901
- https://github.com/vllm-project/vllm/issues/52025
- https://github.com/vllm-project/vllm/pull/52163
- https://github.com/vllm-project/vllm/
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