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.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00153.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/Yunzez/4b08ec3568a8cbfb120062e2558382b8 cve-icon cve-icon cve-icon
https://github.com/vllm-project/vllm/ cve-icon cve-icon cve-icon
https://github.com/vllm-project/vllm/issues/50954 cve-icon cve-icon cve-icon
https://github.com/vllm-project/vllm/pull/51135 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-90713 cve-icon
https://vuldb.com/cve/CVE-2026-90713 cve-icon cve-icon cve-icon
https://vuldb.com/submit/918762 cve-icon cve-icon cve-icon
https://vuldb.com/vuln/403267 cve-icon cve-icon cve-icon
https://vuldb.com/vuln/403267/cti cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-90713 cve-icon
History

Tue, 15 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 15 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
References
Metrics threat_severity

None

 threat_severity

Low

Mon, 14 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
Description 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.
Title vllm-project vLLM tiktoken vocab File mod.rs new denial of service
First Time appeared Vllm-project
Vllm-project vllm
Weaknesses CWE-404
CPEs cpe:2.3:a:vllm-project:vllm:*:*:*:*:*:*:*:*
Vendors & Products Vllm-project
Vllm-project vllm
References
Metrics cvssV2_0

{'score': 1.7, 'vector': 'AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 3.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-15T13:57:19.501Z

Reserved: 2026-09-13T09:40:58.177Z

Link: CVE-2026-90713

cve-icon Vulnrichment

Updated: 2026-09-15T13:42:12.418Z

cve-icon NVD

Status : Deferred

Published: 2026-09-14T13:19:29.677

Modified: 2026-09-15T14:17:33.490

Link: CVE-2026-90713

cve-icon Redhat

Severity : Low

Publid Date: 2026-09-14T12:00:10Z

Links: CVE-2026-90713 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T15:00:17Z

Weaknesses