{"id":"CVE-2021-22051","aliases":["GHSA-2r2v-q399-qq93"],"url":"https://o3.security/vulnerability/CVE-2021-22051","summary":"Request injection in Spring Cloud Gateway","details":"Applications using Spring Cloud Gateway are vulnerable to specifically crafted requests that could make an extra request on downstream services. Users of affected versions should apply the following mitigation: 3.0.x users should upgrade to 3.0.5+, 2.2.x users should upgrade to 2.2.10.RELEASE or newer.","published":"2021-11-08T14:15:07.860Z","modified":"2026-07-08T05:59:21.343977010Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework.cloud:spring-cloud-gateway","fixedVersion":"3.0.5"},{"ecosystem":"Maven","name":"org.springframework.cloud:spring-cloud-gateway","fixedVersion":"2.2.10.RELEASE0.5"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://tanzu.vmware.com/security/cve-2021-22051"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:59:21.343977010Z"}}