---
id: CVE-2026-112082
title: >-
  sgl-project SGLang Expert-Distribution Recording Endpoint
  expert_distribution.py Scheduler.expert_distribution_handle denial of service
summary: >-
  A vulnerability was identified in sgl-project SGLang up to 0.5.19. This
  impacts the function Scheduler.expert_distribution_handle of the file
  python/sglang/srt/eplb/expert_distribution.py of the component
  Expert-Distribution Recording En…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T05:30:22.073Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112082'
references:
  - url: 'https://vuldb.com/vuln/421761'
    label: >-
      VDB-421761 | sgl-project SGLang Expert-Distribution Recording Endpoint
      expert_distribution.py Scheduler.expert_distribution_handle denial of
      service
  - url: 'https://vuldb.com/vuln/421761/cti'
    label: 'VDB-421761 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-112082'
    label: CVE-2026-112082 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/1009918'
    label: >-
      Submit #1009918 | SGLang Project (sgl-project) SGLang 0.5.19 Denial of
      Service
  - url: 'https://github.com/sgl-project/sglang/issues/42071'
  - url: 'https://github.com/sgl-project/sglang/pull/42098'
  - url: 'https://github.com/sgl-project/sglang/'
tags:
  - cve.org
ingestedAt: '2026-10-19T07:09:59.601Z'
---

## Overview

A vulnerability was identified in sgl-project SGLang up to 0.5.19. This impacts the function Scheduler.expert_distribution_handle of the file python/sglang/srt/eplb/expert_distribution.py of the component Expert-Distribution Recording Endpoint. Such manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit is publicly available and might be used. 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.