CVE-2026-112083

sgl-project SGLang Weight Exporter weight_exporter.py WeightExporter.send_weights_to_remote_instance denial of service

State: Published
Severity: 6.9 Medium
Published: Oct 19, 2026
Updated: Oct 19, 2026
Reserved: Oct 18, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/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-421762 | sgl-project SGLang Weight Exporter weight_exporter.py WeightExporter.send_weights_to_remote_instance denial of servicevdb-entrytechnical-description
VDB-421762 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-112083 | CVE Analysis and Reportthird-party-advisory
Submit #1009919 | SGLang Project (sgl-project) SGLang 0.5.19 Denial of Servicethird-party-advisory
https://github.com/sgl-project/sglang/issues/42073exploitissue-tracking
https://github.com/sgl-project/sglang/pull/44314issue-trackingpatch
https://github.com/sgl-project/sglang/product

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