CVE-2026-111662
Chaskiq through 2.0.3 Unauthenticated SSRF via /oembed Endpoint
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 16, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N | VulnCheck |
| 3.1 | 5.8 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
chaskiqchaskiq |
|
References
- https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-uploadthird-party-advisory
- https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/oembed_controller.rb#L8-L11technical-description
- https://github.com/chaskiq/chaskiq/blob/2.0.3/app/services/fetch_link_card_service.rb#L11-L40technical-description
- VulnCheck Advisory: Chaskiq through 2.0.3 Unauthenticated SSRF via /oembed Endpointthird-party-advisory
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