{"id":"CVE-2026-111662","published":"2026-10-16T18:17:47.900","lastModified":"2026-10-16T20:17:21.893","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.","cvssScore":5.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/oembed_controller.rb#L8-L11","tags":[]},{"url":"https://github.com/chaskiq/chaskiq/blob/2.0.3/app/services/fetch_link_card_service.rb#L11-L40","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload","tags":[]},{"url":"https://www.vulncheck.com/advisories/chaskiq-through-2.0.3-unauthenticated-ssrf-via-oembed-endpoint","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/chaskiq-unauthenticated-ssrf-oembed-url-upload","tags":[]}],"exploitRefs":[{"url":"https://github.com/chaskiq/chaskiq/blob/2.0.3/app/controllers/oembed_controller.rb#L8-L11","tags":[]},{"url":"https://github.com/chaskiq/chaskiq/blob/2.0.3/app/services/fetch_link_card_service.rb#L11-L40","tags":[]}],"hasPoc":true,"ai":null}