SSRF in Chaskiq
CVE-2026-111662
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload (third-party-advisory)
- github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/oembed_controller.rb (technical-description)
- github.com/chaskiq/chaskiq/blob/2.0.3/app/services/fetch_link_card_service.rb (technical-description)
- www.vulncheck.com/advisories/chaskiq-through-2.0.3-unauthenticated-ssrf-via-oem… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111662?
- CVE-2026-111662 is a medium-severity vulnerability in Chaskiq, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2026-10-16.
- How severe is CVE-2026-111662?
- Medium severity. CVSS v3 base score is 5.8 out of 10.