Vulnerability Description
vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by bypassing logprob_token_ids limits in the Rust gRPC frontend. Attackers can send Generate or GenerateStream requests with output_logprobs enabled and more than 128 output_candidates.token_ids, triggering a fatal sampler exception that crashes the engine.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vllm | Vllm | >= 0.22.0, < 0.24.0 |
Related Weaknesses (CWE)
References
- https://github.com/vllm-project/vllm/security/advisories/GHSA-6pgw-f3pv-4h8qMitigationVendor Advisory
- https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-denial-of-serviceThird Party Advisory
FAQ
What is CVE-2026-116173?
CVE-2026-116173 is a vulnerability with a CVSS score of 5.9 (MEDIUM). vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by bypassing logprob_token_ids limits in the Rust gRPC frontend. Attacker...
How severe is CVE-2026-116173?
CVE-2026-116173 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116173?
Check the references section above for vendor advisories and patch information. Affected products include: Vllm Vllm.