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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sgl-project | SGLang | 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 | — |
References
- VDB-420278 | sgl-project SGLang generate Endpoint io_struct.py denial of service vdb-entry technical-description
- VDB-420278 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- CVE-2026-110807 | CVE Analysis and Report third-party-advisory
- Submit #1004351 | SGLang Project (sgl-project) SGLang(SGLang Runtime) 0.5.19 Improper Validation of Specified Type of Input third-party-advisory
- https://github.com/sgl-project/sglang/issues/41467 issue-tracking
- https://github.com/sgl-project/sglang/pull/41535 issue-tracking patch
- https://gist.github.com/Yunzez/28820d220c52de4810fd5fb2d1dcf409#file-repro_sglang_session_params_crash-py exploit
- https://github.com/sgl-project/sglang/ product