sgl-project SGLang up to 0.5.21 Audio Loading load_audio audio_url/audio_data denial of service

Summaryinfo

A vulnerability was found in sgl-project SGLang up to 0.5.21. It has been classified as problematic. The affected element is the function load_audio of the component Audio Loading. The manipulation of the argument audio_url/audio_data leads to denial of service. This vulnerability is traded as CVE-2026-109226. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in sgl-project SGLang up to 0.5.21 and classified as problematic. This issue affects the function load_audio of the component Audio Loading. The manipulation of the argument audio_url/audio_data with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-109226 since 10/12/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Project Management Software

Vendor

• sgl-project

Name

• SGLang

Version

• 0.5.0
• 0.5.1
• 0.5.2
• 0.5.3
• 0.5.4
• 0.5.5
• 0.5.6
• 0.5.7
• 0.5.8
• 0.5.9
• 0.5.10
• 0.5.11
• 0.5.12
• 0.5.13
• 0.5.14
• 0.5.15
• 0.5.16
• 0.5.17
• 0.5.18
• 0.5.19
• 0.5.20
• 0.5.21

Website

• Product: https://github.com/sgl-project/sglang/

CPE 2.3info

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