---
id: CVE-2026-111663
title: Chaskiq through 2.0.3 SSRF via createUrlUpload GraphQL Mutation
summary: >-
  Chaskiq through 2.0.3 contains a server-side request forgery vulnerability
  that allows unauthenticated attackers to fetch arbitrary URLs via the
  createUrlUpload GraphQL mutation. Attackers can submit internal URLs,
  including cloud instan…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: chaskiq
product: chaskiq
affected:
  - chaskiq <= 2.0.3
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:39:26.910Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111663'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload
  - url: >-
      https://github.com/chaskiq/chaskiq/blob/2.0.3/app/graphql/mutations/create_url_upload.rb#L29-L66
  - url: >-
      https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/graphql_controller.rb#L3-L33
  - url: >-
      https://www.vulncheck.com/advisories/chaskiq-through-2.0.3-ssrf-via-createurlupload-graphql-mutation
    label: >-
      VulnCheck Advisory: Chaskiq through 2.0.3 SSRF via createUrlUpload GraphQL
      Mutation
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.671Z'
---

## Overview

Chaskiq through 2.0.3 contains a server-side request forgery vulnerability that allows unauthenticated attackers to fetch arbitrary URLs via the createUrlUpload GraphQL mutation. Attackers can submit internal URLs, including cloud instance metadata endpoints, through POST /graphql and retrieve the full response via the returned ActiveStorage blob URL.

## Affected

- `chaskiq <= 2.0.3`

## Remediation

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