CVE-2026-111663CWE-918ssrf

CVE-2026-111663

High · published October 16, 2026

CVSS v3.1
8.6
EPSS
0%
Percentile
20.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
9.2 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
EPSS
0.00286 · 20.0th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-10-16T22:17Z
References (5)
https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/graphql_controller.rb#L3-L33 · [email protected]https://github.com/chaskiq/chaskiq/blob/2.0.3/app/graphql/mutations/create_url_upload.rb#L29-L66 · [email protected]https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload · [email protected]https://www.vulncheck.com/advisories/chaskiq-through-2.0.3-ssrf-via-createurlupload-graphql-mutation · [email protected]https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:39Z
    Chaskiq through 2.0.3 SSRF via createUrlUpload GraphQL Mutation
    cvelistv5
  • 16 OCT 17:39Z
    Chaskiq through 2.0.3 SSRF via createUrlUpload GraphQL Mutation
    cvelistv5