---
id: CVE-2026-7669
aliases:
  - GHSA-6m5f-673f-5vh7
  - PYSEC-2026-3062
title: SGLang has an Improper Input Validation/Injection Issue
summary: SGLang has an Improper Input Validation/Injection Issue
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'
vendor: sglang
product: sglang
ecosystem: pip
affected:
  - sglang <= 0.5.9
published: '2026-05-03'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-6m5f-673f-5vh7'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-7669'
  - url: 'https://github.com/gouldnicholas/CVE-2026-7669-PoC'
  - url: 'https://github.com/sgl-project/sglang'
  - url: 'https://vuldb.com/submit/799263'
  - url: 'https://vuldb.com/vuln/360817'
  - url: 'https://vuldb.com/vuln/360817/cti'
tags:
  - osv
  - pip
  - exploit-available
epss: 0.00368
epssPercentile: 0.30703
ingestedAt: '2026-07-13T18:57:53.937Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/gouldnicholas/CVE-2026-7669-PoC'
  checkedAt: '2026-09-24T07:53:16.895Z'
exploitAvailable: true
---

## Overview

A vulnerability was detected in sgl-project SGLang up to 0.5.9. Impacted is the function get_tokenizer of the file python/sglang/srt/utils/hf_transformers_utils.py of the component HuggingFace Transformer Handler. The manipulation results in deserialization. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitability is considered difficult. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected packages

- `sglang <= 0.5.9`

## Remediation

Refer to the advisory for the patched release.