Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllm/
- https://github.com/vllm-project/vllm/issues/52025
- https://github.com/vllm-project/vllm/pull/52163
- https://vuldb.com/cve/CVE-2026-90878
- https://vuldb.com/submit/927901
- https://vuldb.com/vuln/403472
- https://vuldb.com/vuln/403472/cti
FAQ
What is CVE-2026-90878?
CVE-2026-90878 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 argu...
How severe is CVE-2026-90878?
CVE-2026-90878 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-90878?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.