{"id":"CVE-2021-22097","aliases":["GHSA-fx7f-rjqj-52pj"],"url":"https://o3.security/vulnerability/CVE-2021-22097","summary":"Deserialization of Untrusted Data in Spring AMQP","details":"In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body for a message with content type application/x-java-serialized-object. It is possible to construct a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called.","published":"2021-10-28T16:15:08.023Z","modified":"2026-07-08T23:57:24.068094Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.01071,"percentile":0.61871,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework.amqp:spring-amqp","fixedVersion":"2.2.19"},{"ecosystem":"Maven","name":"org.springframework.amqp:spring-amqp","fixedVersion":"2.3.11"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://tanzu.vmware.com/security/cve-2021-22097"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:57:24.068094Z"}}