---
id: CVE-2026-112083
title: >-
  sgl-project SGLang Weight Exporter weight_exporter.py
  WeightExporter.send_weights_to_remote_instance denial of service
summary: >-
  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
  th…
severity: medium
cvss: 5.3
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-404
vendor: sgl-project
product: SGLang
affected:
  - SGLang 0.5.0
  - SGLang 0.5.1
  - SGLang 0.5.2
  - SGLang 0.5.3
  - SGLang 0.5.4
  - SGLang 0.5.5
  - SGLang 0.5.6
  - SGLang 0.5.7
  - SGLang 0.5.8
  - SGLang 0.5.9
  - SGLang 0.5.10
  - SGLang 0.5.11
  - SGLang 0.5.12
  - SGLang 0.5.13
  - SGLang 0.5.14
  - SGLang 0.5.15
  - SGLang 0.5.16
  - SGLang 0.5.17
  - SGLang 0.5.18
  - SGLang 0.5.19
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-19T15:46:38.788229Z'
exploitAvailable: true
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T16:36:26.379Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112083'
references:
  - url: 'https://vuldb.com/vuln/421762'
    label: >-
      VDB-421762 | sgl-project SGLang Weight Exporter weight_exporter.py
      WeightExporter.send_weights_to_remote_instance denial of service
  - url: 'https://vuldb.com/vuln/421762/cti'
    label: 'VDB-421762 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-112083'
    label: CVE-2026-112083 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1009919'
    label: >-
      Submit #1009919 | SGLang Project (sgl-project) SGLang 0.5.19  Denial of
      Service
  - url: 'https://github.com/sgl-project/sglang/issues/42073'
  - url: 'https://github.com/sgl-project/sglang/pull/44314'
  - url: 'https://github.com/sgl-project/sglang/'
tags:
  - cve.org
  - exploit-available
epss: 0.00419
epssPercentile: 0.34772
ingestedAt: '2026-10-19T07:09:59.601Z'
---

## Overview

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.

## Affected

- `SGLang 0.5.0`
- `SGLang 0.5.1`
- `SGLang 0.5.2`
- `SGLang 0.5.3`
- `SGLang 0.5.4`
- `SGLang 0.5.5`
- `SGLang 0.5.6`
- `SGLang 0.5.7`
- `SGLang 0.5.8`
- `SGLang 0.5.9`
- `SGLang 0.5.10`
- `SGLang 0.5.11`
- `SGLang 0.5.12`
- `SGLang 0.5.13`
- `SGLang 0.5.14`
- `SGLang 0.5.15`
- `SGLang 0.5.16`
- `SGLang 0.5.17`
- `SGLang 0.5.18`
- `SGLang 0.5.19`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.