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CVE-2026-90555 Details
Description
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 14, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/vllm-project/vllm/security/advisories/GHSA-99f2-hwrc-gvq8 | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-audio-header | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-409 | Improper Handling of Highly Compressed Data (Data Amplification) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| vllm vllm | < 0.28.0 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | Initial Analysis | [email protected] |
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 12, 2026 | New CVE Received | [email protected] |