CVE-2026-112083 Details
Description
A security flaw has been discovered in sgl-project SGLang up to 0.5.19. Affected 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. Performing a manipulation of the argument group_name results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The pull request to fix this issue awaits acceptance.
A denial-of-service vulnerability has been identified in SGL Project SGLang versions prior to 0.5.19. The issue arises in the Weight Exporter component, specifically within the send_weights_to_remote_instance function. When the group_name argument is manipulated, it leads to a KeyError that is not properly handled, causing the server to crash. This vulnerability can be exploited remotely, and the published exploit is available for public use.
A pull request to fix this vulnerability has been submitted and is awaiting acceptance.
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 19, 2026CISA-ADP
Assessed Oct 19, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/sgl-project/sglang/ | [email protected] | Source CodeVendor |
| https://github.com/sgl-project/sglang/issues/42073 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/sgl-project/sglang/pull/44314 | [email protected] | Issue TrackingVendor |
| https://vuldb.com/cve/CVE-2026-112083 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1009919 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/421762 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/421762/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 19, 2026 | CVE Modified | CISA-ADP |
| Oct 19, 2026 | New CVE Received | [email protected] |