CVE-2026-34760

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Source

https://cve.org/CVERecord?id=CVE-2026-34760

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34760.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-34760

Aliases

Published

2026-04-02T18:59:49.638Z

Modified

2026-07-15T01:49:00.436307365Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator

Summary

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

Details

vLLM is an inference and serving engine for large language models (LLMs). From version 0.5.5 to before version 0.18.0, Librosa defaults to using numpy.mean for mono downmixing (to_mono), while the international standard ITU-R BS.775-4 specifies a weighted downmixing algorithm. This discrepancy results in inconsistency between audio heard by humans (e.g., through headphones/regular speakers) and audio processed by AI models (Which infra via Librosa, such as vllm, transformer). This issue has been patched in version 0.18.0.

Database specific

{
    "cwe_ids": [
        "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34760.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/vllm-project/vllm

Affected ranges

Type

GIT

Repo

https://github.com/vllm-project/vllm

Events

Introduced

09c7792610ada9f88bbf87d32b472dd44bf23cc2

Fixed

bcf2be96120005e9aea171927f85055a6a5c0cf6

Fixed

c7f98b4d0a63b32ed939e2b6dfaa8a626e9b46c4

Database specific

{
    "cpe": "cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0.5.5"
        },
        {
            "fixed": "0.18.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

v0.*

v0.10.0

v0.10.0rc1

v0.10.0rc2

v0.10.1rc1

v0.10.2rc1

v0.10.2rc2

v0.11.0rc1

v0.11.1

v0.11.1rc0

v0.11.1rc1

v0.11.1rc2

v0.11.1rc3

v0.11.1rc4

v0.11.1rc5

v0.11.1rc6

v0.13.0rc1

v0.14.0rc0

v0.14.0rc1

v0.15.0rc1

v0.15.2rc0

v0.16.0rc0

v0.16.0rc1

v0.17.0rc0

v0.17.1rc0

v0.17.2rc0

v0.18.0rc0

v0.18.0rc1

v0.18.0rc2

v0.5.5

v0.6.0

v0.6.1

v0.6.1.post1

v0.6.1.post2

v0.6.2

v0.6.3

v0.6.3.post1

v0.6.4

v0.6.4.post1

v0.6.5

v0.6.6

v0.6.6.post1

v0.7.0

v0.7.1

v0.7.2

v0.7.3

v0.8.0rc1

v0.8.0rc2

v0.8.1

v0.8.2

v0.8.3rc1

v0.8.4

v0.9.0

v0.9.1

v0.9.1rc1

v0.9.1rc2

v0.9.2rc1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34760.json"