---
id: CVE-2026-112267
title: >-
  SGLang through 0.5.22 SSRF via bootstrap_host and bootstrap_port on Decode
  Worker
summary: >-
  SGLang through 0.5.22 in prefill/decode disaggregation mode contains a
  server-side request forgery vulnerability that allows unauthenticated
  attackers to trigger outbound requests via client-supplied bootstrap_host and
  bootstrap_port fie…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-918
vendor: sgl-project
product: sglang
affected:
  - sglang <= 0.5.22
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T13:55:16.522Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112267'
references:
  - url: 'https://github.com/sgl-project/sglang/issues/45008'
  - url: >-
      https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/common/conn.py#L1157-L1181
  - url: >-
      https://github.com/sgl-project/sglang/blob/v0.5.22/python/sglang/srt/disaggregation/decode.py#L1150-L1175
  - url: >-
      https://www.vulncheck.com/advisories/sglang-through-0.5.22-ssrf-via-bootstrap-host-and-bootstrap-port-on-decode-worker
    label: >-
      VulnCheck Advisory: SGLang through 0.5.22 SSRF via bootstrap_host and
      bootstrap_port on Decode Worker
tags:
  - cve.org
ingestedAt: '2026-10-19T14:30:01.076Z'
---

## Overview

SGLang through 0.5.22 in prefill/decode disaggregation mode contains a server-side request forgery vulnerability that allows unauthenticated attackers to trigger outbound requests via client-supplied bootstrap_host and bootstrap_port fields. Attackers sending crafted requests to the Decode worker's /generate endpoint can probe internal hosts and ports and block the shared scheduler loop, delaying other inference requests.

## Affected

- `sglang <= 0.5.22`

## Remediation

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