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01 Record

CVE-2026-34760

vLLM: Downmix Implementation Differences as Attack Vectors Against Audio AI Models

MediumPUBLISHEDCNA: GitHub_M
CNA base score5.9 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L

02 Description

vLLM: Downmix Implementation Differences as Attack Vectors Against Audio AI Models

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 18.6% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
NVD analysis status
Analyzed. NVD last modified this record on 2026-07-24.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-02 18:59Z6 MO AGO
Last updated
2026-04-03 14:42Z6 MO AGO
Reserved
2026-03-30
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 5.9)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Weaknesses
  • CWE-20Improper Input ValidationClass
  • CWE-358Improperly Implemented Security Check for StandardBase
Data version
5.2
Document digest
6f2233c75ec548803d5574b6d04323344ae554b78a45cb447a28feae381afe52

05 Affected products

VendorProductVersionsPlatforms
vllm-projectvllm>= 0.5.5, < 0.18.0—

06 References