TI-2026-61569 Aliases CVE-2026-90555 GHSA-mpw6-hvj8-87hq

vLLM before 0.28.0 Denial of Service via Audio Header

LOW 32CWE-409Published 2026-09-12 · Updated 2026-09-14

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 3 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0052 44th percentileScored 2026-11-07

Fix Partial vLLM (vllm-project): 0.28.0Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
vllm-project	vLLM	before 0.28.0	0.28.0	Patch available	CNA

vLLM Vendorvllm-project Affected before 0.28.0 Fixed in 0.28.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:vllm:vllm::::::::	before 0.28.0	Vulnerable	vLLM

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* Versions before 0.28.0 Vulnerable ·vLLM

Remediation

Fix · CNA vLLM (vllm-project) Fixed in 0.28.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-09-12
vllm-project vLLM 0.28.0
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-61567 vLLM before 0.28.0 Remote Code Execution via LlavaOnevision2 processorPriority LOW 39
- TI-2026-61568 vLLM before 0.28.0 Denial of Service via audio extractionPriority LOW 30
Show all 3 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat AI Inference Server	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2026-90555
2026-10-03 Alias added: GHSA-mpw6-hvj8-87hq

References

Advisory 1

GitHub Security Advisory (GHSA-99f2-hwrc-gvq8)

TI-2024-10229 Remote Code Execution in vllm-project/vllm CVSS 3.0CRITICAL 9.8
TI-2024-08404 Remote Code Execution in vllm-project/vllm CVSS 3.1CRITICAL 9.8
TI-2026-36017 vLLM: OpenAI auth bypass CVSS 3.1CRITICAL 9.1
TI-2026-63056 vLLM before 0.28.0 Denial of Service via negative token ID CVSS 4.0HIGH 8.7
TI-2026-04308 Hardcoded trust_remote_code=True in vllm-project/vllm Bypasses User Security Control CVSS 3.0HIGH 8.8
TI-2026-39137 vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection CVSS 3.1HIGH 7.5

See all 124 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences