CVE-2026-110807 Details
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.
A denial-of-service vulnerability has been identified in SGL Project SGLang versions through 0.5.19. The issue arises in the generate endpoint, specifically within the file python/sglang/srt/managers/io_struct.py. The vulnerability is triggered by manipulating the session_params argument, leading to a TypeError that crashes the server. This issue can be exploited remotely, causing all in-flight requests to fail and disrupting the /health endpoint.
A pull request is available that adds type validation for the session_params fields, addressing the issue by ensuring that incorrect types cannot be processed by the server.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 14, 2026CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://gist.github.com/Yunzez/28820d220c52de4810fd5fb2d1dcf409#file-repro_sglang_session_params_crash-py | [email protected] | Exploit |
| https://github.com/sgl-project/sglang/ | [email protected] | Vendor |
| https://github.com/sgl-project/sglang/issues/41467 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/sgl-project/sglang/pull/41535 | [email protected] | Issue TrackingVendor |
| https://vuldb.com/cve/CVE-2026-110807 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1004351 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/420278 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/420278/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| sgl-project SGLang | <= 0.5.19 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 14, 2026 | New CVE Received | [email protected] |