CVE-2026-90713 PUBLISHED

A security flaw has been discovered in vllm-project vLLM up to 0.29.0. The affected element is the function TiktokenTokenizer::new of the file rust/src/text/src/backend/hf/mod.rs of the component tiktoken vocab File Handler. The manipulation results in denial of service. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.

• Zyz3366 (VulDB User) reporter
• VulDB CNA Team coordinator

• VDB-403267 | vllm-project vLLM tiktoken vocab File mod.rs new denial of service
• VDB-403267 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-90713 | CVE Analysis and Report
• Submit #918762 | vLLM Project (vllm-project) vLLM v0.26.0 Denial of Service
• https://github.com/vllm-project/vllm/issues/50954
• https://github.com/vllm-project/vllm/pull/51135
• https://gist.github.com/Yunzez/4b08ec3568a8cbfb120062e2558382b8
• https://github.com/vllm-project/vllm/

• Denial of Service CWE