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.
Published: 2026-09-12
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 13 Sep 2026 00:15:00 +0000

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

None

threat_severity

Moderate


Sat, 12 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
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.
Title vLLM before 0.28.0 Denial of Service via Audio Header
First Time appeared Vllm
Vllm vllm
Weaknesses CWE-409
CPEs cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Vendors & Products Vllm
Vllm vllm
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-12T12:08:58.226Z

Reserved: 2026-09-12T11:13:43.326Z

Link: CVE-2026-90555

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-12T13:16:54.180

Modified: 2026-09-12T13:16:54.180

Link: CVE-2026-90555

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-12T12:08:58Z

Links: CVE-2026-90555 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-13T01:15:14Z

Weaknesses