CVE-2026-90555

vLLM versions before 0.28.0 fail to validate audio sample rate headers in the transcription endpoint, allowing authenticated clients to bypass duration checks. Attackers can submit forged FLAC headers with inflated sample rates to trigger excessive memory allocation and crash the API server process affecting all tenants.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vllm-project/vllm/security/advisories/GHSA-99f2-hwrc-gvq8
https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-audio-header

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-12 13:16

Updated : 2026-09-14 21:08

NVD link : CVE-2026-90555

Mitre link : CVE-2026-90555

CVE.ORG link : CVE-2026-90555

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

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