sgl-project SGLang up to 0.5.19 generate Endpoint io_struct.py session_params denial of service

Summaryinfo

A vulnerability described as problematic has been identified in sgl-project SGLang up to 0.5.19. Affected by this issue is some unknown functionality of the file python/sglang/srt/managers/io_struct.py of the component generate Endpoint. Such manipulation of the argument session_params leads to denial of service. This vulnerability is listed as CVE-2026-110807. The attack may be performed from remote. In addition, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in sgl-project SGLang up to 0.5.19 and classified as problematic. Affected by this issue is an unknown code block of the file python/sglang/srt/managers/io_struct.py of the component generate Endpoint. The manipulation of the argument session_params 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 advisory is available at github.com. This vulnerability is handled as CVE-2026-110807. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The exploit is available at gist.github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

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

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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

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Entryinfo

Submitinfo

Accepted

• Submit #1004351: SGLang Project (sgl-project) SGLang(SGLang Runtime) 0.5.19 Improper Validation of Specified Type of Input (by Zyz3366)

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