sgl-project SGLang up to 0.5.21 Audio Transcription /v1/audio/transcriptions allocation of resources

Summaryinfo

A vulnerability was found in sgl-project SGLang up to 0.5.21. It has been rated as problematic. This affects an unknown function of the file /v1/audio/transcriptions of the component Audio Transcription. This manipulation causes allocation of resources. This vulnerability is handled as CVE-2026-109225. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in sgl-project SGLang up to 0.5.21. It has been declared as problematic. Affected by this vulnerability is an unknown function of the file /v1/audio/transcriptions of the component Audio Transcription. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

SGLang through 0.5.21 contains an unbounded memory allocation vulnerability that allows unauthenticated remote attackers to exhaust memory by uploading oversized files to /v1/audio/transcriptions. Attackers can send concurrent large multipart uploads, which are fully read into memory before validation, to crash the HTTP/tokenizer worker and deny service.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-109225 since 10/12/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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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CPE 2.2info

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