sgl-project SGLang up to 0.5.19 Weight Exporter weight_exporter.py WeightExporter.send_weights_to_remote_instance group_name denial of service

Summaryinfo

A vulnerability described as problematic has been identified in sgl-project SGLang up to 0.5.19. Affected by this vulnerability is the function WeightExporter.send_weights_to_remote_instance of the file python/sglang/srt/model_executor/model_runner_components/weight_exporter.py of the component Weight Exporter. Executing a manipulation of the argument group_name can lead to denial of service. This vulnerability is tracked as CVE-2026-112083. The attack can be launched remotely. Moreover, an exploit is present. The pull request to fix this issue awaits acceptance.

Detailsinfo

A vulnerability has been found in sgl-project SGLang up to 0.5.19 and classified as problematic. This vulnerability affects the function WeightExporter.send_weights_to_remote_instance of the file python/sglang/srt/model_executor/model_runner_components/weight_exporter.py of the component Weight Exporter. The manipulation of the argument group_name with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-112083. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The pull request to fix this issue awaits acceptance.

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 best quality of vulnerability data, you may have to visit 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

Website

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

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

Submitinfo

Accepted

• Submit #1009919: SGLang Project (sgl-project) SGLang 0.5.19 Denial of Service (by Zyz3366)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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