SSRF in Chaskiq
CVE-2026-111663
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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/graphql/mutations/create_url_upload.rb (technical-description)
- github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/graphql_controller.rb (technical-description)
- www.vulncheck.com/advisories/chaskiq-through-2.0.3-ssrf-via-createurlupload-gra… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111663?
- CVE-2026-111663 is a high-severity vulnerability in Chaskiq, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-10-16.
- How severe is CVE-2026-111663?
- High severity. CVSS v3 base score is 8.6 out of 10.