{"id":"CVE-2021-27738","aliases":["GHSA-wrx7-qgmj-mf2q"],"url":"https://o3.security/vulnerability/CVE-2021-27738","summary":"Server-Side Request Forgery in Apache Kylin","details":"All request mappings in `StreamingCoordinatorController.java` handling `/kylin/api/streaming_coordinator/*` REST API endpoints did not include any security checks, which allowed an unauthenticated user to issue arbitrary requests, such as assigning/unassigning of streaming cubes, creation/modification and deletion of replica sets, to the Kylin Coordinator. For endpoints accepting node details in HTTP message body, unauthenticated (but limited) server-side request forgery (SSRF) can be achieved. This issue affects Apache Kylin Apache Kylin 3 versions prior to 3.1.2.","published":"2022-01-06T13:15:07.967Z","modified":"2026-07-08T21:26:22.086491Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":{"score":0.02557,"percentile":0.83816,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.kylin:kylin","fixedVersion":"3.1.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2022/01/06/6"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/vkohh0to2vzwymyb2x13fszs3cs3vd70"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:26:22.086491Z"}}