CVE-2026-109226 (GCVE-0-2026-109226)

Vulnerability from cvelistv5 – Published: 2026-10-12 14:04 – Updated: 2026-10-12 14:04
VLAI
Title
SGLang through 0.5.21 Audio Decompression Amplification via load_audio
Summary
SGLang through 0.5.21 contains a decompression amplification vulnerability in load_audio that allows remote attackers to exhaust memory by submitting highly compressed audio decoded without duration or sample limits. Attackers can supply small FLAC-encoded silence files through audio_url or audio_data inputs that expand into massive PCM buffers, exhausting worker memory and CPU for denial of service.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5715 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
sgl-project sglang Affected: 0 , ≤ 0.5.21 (semver)
    cpe:2.3:a:lmsys:sglang:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-11 00:00
Credits
Jiapeng Li Jiajia Liu Jiadai Wang
Show details on NVD website
To clipboard 

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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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