{"id":"CVE-2023-20863","aliases":["GHSA-wxqc-pxw9-g2p8"],"url":"https://o3.security/vulnerability/CVE-2023-20863","summary":"Spring Framework vulnerable to denial of service","details":"In Spring Framework versions prior to 5.2.24.release+ , 5.3.27+ and 6.0.8+ , it is possible for a user to provide a specially crafted Spring Expression Language (SpEL) expression that may cause a denial-of-service (DoS) condition.","published":"2023-04-13T00:00:00Z","modified":"2026-08-12T03:51:16.303794406Z","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":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework:spring-expression","fixedVersion":"6.0.8"},{"ecosystem":"Maven","name":"org.springframework:spring-expression","fixedVersion":"5.3.27"},{"ecosystem":"Maven","name":"org.springframework:spring-expression","fixedVersion":"5.2.24.RELEASE"}],"fix":{"url":"https://github.com/spring-projects/spring-framework/commit/965a6392757d20f9db19241126fcc719a51eac15","label":"spring-projects/spring-framework@965a639"},"references":[{"type":"WEB","url":"https://spring.io/security/cve-2023-20863"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/20xxx/CVE-2023-20863.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20863"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240524-0015/"},{"type":"WEB","url":"https://github.com/spring-projects/spring-framework/commit/965a6392757d20f9db19241126fcc719a51eac15"},{"type":"WEB","url":"https://github.com/spring-projects/spring-framework/commit/b73f5fcac22555f844cf27a7eeb876cb9d7f7f7e"},{"type":"WEB","url":"https://github.com/spring-projects/spring-framework/commit/ebc82654282bda547fbc20a9749ab1bda886a46f"},{"type":"PACKAGE","url":"https://github.com/spring-projects/spring-framework"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240524-0015"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.303794406Z"}}