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CVE-2026-90713

vllm-project vLLM tiktoken vocab File mod.rs new denial of service

CVSS 4.0 4.8 MEDIUMCVSS 3.1 3.3 LOWCVSS 3.0 3.3 LOWCVSS 2.0 1.7 Check source for fixed versionsKEV status unknown

Original advisory

cve-program · 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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90713

Published

vLLM

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "vllm-project",
                    "product": "vLLM",
                    "versions": [
                        {
                            "version": "0.1",
                            "status": "affected"
                        },
                        {
                            "version": "0.2",
                            "status": "affected"
                        },
                        {
                            "version": "0.3",
                            "status": "affected"
                        },
                        {
                            "version": "0.4",
                            "status": "affected"
                        },
                        {
                            "version": "0.5",
                            "status": "affected"
                        },
                        {
                            "version": "0.6",
                            "status": "affected"
                        },
                        {
                            "version": "0.7",
                            "status": "affected"
                        },
                        {
                            "version": "0.8",
                            "status": "affected"
                        },
                        {
                            "version": "0.9",
                            "status": "affected"
                        },
                        {
                            "version": "0.10",
                            "status": "affected"
                        },
                        {
                            "version": "0.11",
                            "status": "affected"
                        },
                        {
                            "version": "0.12",
                            "status": "affected"
                        },
                        {
                            "version": "0.13",
                            "status": "affected"
                        },
                        {
                            "version": "0.14",
                            "status": "affected"
                        },
                        {
                            "version": "0.15",
                            "status": "affected"
                        },
                        {
                            "version": "0.16",
                            "status": "affected"
                        },
                        {
                            "version": "0.17",
                            "status": "affected"
                        },
                        {
                            "version": "0.18",
                            "status": "affected"
                        },
                        {
                            "version": "0.19",
                            "status": "affected"
                        },
                        {
                            "version": "0.20",
                            "status": "affected"
                        },
                        {
                            "version": "0.21",
                            "status": "affected"
                        },
                        {
                            "version": "0.22",
                            "status": "affected"
                        },
                        {
                            "version": "0.23",
                            "status": "affected"
                        },
                        {
                            "version": "0.24",
                            "status": "affected"
                        },
                        {
                            "version": "0.25",
                            "status": "affected"
                        },
                        {
                            "version": "0.26",
                            "status": "affected"
                        },
                        {
                            "version": "0.27",
                            "status": "affected"
                        },
                        {
                            "version": "0.28",
                            "status": "affected"
                        },
                        {
                            "version": "0.29.0",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:vllm-project:vllm:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "tiktoken vocab File Handler"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON