---
id: CVE-2026-111662
title: Chaskiq through 2.0.3 Unauthenticated SSRF via /oembed Endpoint
summary: >-
  Chaskiq through 2.0.3 contains a server-side request forgery vulnerability
  that allows unauthenticated attackers to make the server fetch arbitrary URLs
  via the url parameter of the /oembed endpoint. Attackers can target loopback,
  privat…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: chaskiq
product: chaskiq
affected:
  - chaskiq <= 2.0.3
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-16T19:13:22.190643Z'
exploitAvailable: true
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:13:57.537Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111662'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload
  - url: >-
      https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/oembed_controller.rb#L8-L11
  - url: >-
      https://github.com/chaskiq/chaskiq/blob/2.0.3/app/services/fetch_link_card_service.rb#L11-L40
  - url: >-
      https://www.vulncheck.com/advisories/chaskiq-through-2.0.3-unauthenticated-ssrf-via-oembed-endpoint
    label: >-
      VulnCheck Advisory: Chaskiq through 2.0.3 Unauthenticated SSRF via /oembed
      Endpoint
tags:
  - cve.org
  - exploit-available
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 make the server fetch arbitrary URLs via the url parameter of the /oembed endpoint. Attackers can target loopback, private, or cloud-metadata addresses through FetchLinkCardService, which follows redirects and skips TLS verification, to read internal page titles and descriptions.

## Affected

- `chaskiq <= 2.0.3`

## Remediation

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