Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 19.6%
CVSS Severity
CVSS v3 Score 6.5