CVE-2026-110807

sgl-project SGLang generate Endpoint io_struct.py denial of service

State: Published
Severity: 5.3 Medium
Published: Oct 14, 2026
Updated: Oct 15, 2026
Reserved: Oct 14, 2026

Description

A weakness has been identified in sgl-project SGLang up to 0.5.19. Affected by this vulnerability is an unknown functionality of the file python/sglang/srt/managers/io_struct.py of the component generate Endpoint. This manipulation of the argument session_params causes denial of service. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:C	VulDB

Weaknesses

CWE-404 Denial of Service

Affected Products

Product	Versions
SGLangsgl-project	0.5.0Affected 0.5.1Affected 0.5.2Affected 0.5.3Affected 0.5.4Affected 0.5.5Affected 0.5.6Affected 0.5.7Affected 0.5.8Affected 0.5.9Affected 0.5.10Affected 0.5.11Affected 0.5.12Affected 0.5.13Affected 0.5.14Affected 0.5.15Affected 0.5.16Affected 0.5.17Affected 0.5.18Affected 0.5.19Affected

References

VDB-420278 | sgl-project SGLang generate Endpoint io_struct.py denial of servicevdb-entrytechnical-description
VDB-420278 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-110807 | CVE Analysis and Reportthird-party-advisory
Submit #1004351 | SGLang Project (sgl-project) SGLang(SGLang Runtime) 0.5.19 Improper Validation of Specified Type of Inputthird-party-advisory
https://github.com/sgl-project/sglang/issues/41467issue-tracking
https://github.com/sgl-project/sglang/pull/41535issue-trackingpatch
https://gist.github.com/Yunzez/28820d220c52de4810fd5fb2d1dcf409#file-repro_sglang_session_params_crash-pyexploit
https://github.com/sgl-project/sglang/product

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