{"cve":"CVE-2021-22119","nvd":{"published":"2021-06-29T17:15:08.143","modified":"2026-06-17T03:36:39.027","status":"Modified","description":"Spring Security versions 5.5.x prior to 5.5.1, 5.4.x prior to 5.4.7, 5.3.x prior to 5.3.10 and 5.2.x prior to 5.2.11 are susceptible to a Denial-of-Service (DoS) attack via the initiation of the Authorization Request in an OAuth 2.0 Client Web and WebFlux application. A malicious user or attacker can send multiple requests initiating the Authorization Request for the Authorization Code Grant, which has the potential of exhausting system resources using a single session or multiple sessions.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-863","CWE-400"],"references":["https://lists.apache.org/thread.html/r08a449010786e0bcffa4b5781b04fcb55d6eafa62cb79b8347680aad%40%3Cissues.nifi.apache.org%3E","https://lists.apache.org/thread.html/r163b3e4e39803882f5be05ee8606b2b9812920e196daa2a82997ce14%40%3Cpluto-dev.portals.apache.org%3E","https://lists.apache.org/thread.html/r3868207b967f926819fe3aa8d33f1666429be589bb4a62104a49f4e3%40%3Cpluto-dev.portals.apache.org%3E","https://lists.apache.org/thread.html/r390783b3b1c59b978131ac08390bf77fbb3863270cbde59d5b0f5fde%40%3Cpluto-dev.portals.apache.org%3E","https://lists.apache.org/thread.html/r89aa1b48a827f5641310305214547f1d6b2101971a49b624737c497f%40%3Cpluto-dev.portals.apache.org%3E"],"products":["oracle:communications_cloud_native_core_policy","vmware:spring_security"],"source":"nvd","synced_at":"2026-10-19T21:20:07.141963181+00:00"},"epss":{"cve":"CVE-2021-22119","score":0.06001,"percentile":0.93328,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w9jg-gvgr-354m","url":"https://osv.dev/vulnerability/GHSA-w9jg-gvgr-354m","summary":"Resource Exhaustion in Spring Security","modified":"2023-11-08T04:04:54.193370Z","packages":[{"ecosystem":"Maven","name":"org.springframework.security:spring-security-core","purl":"pkg:maven/org.springframework.security/spring-security-core","ranges":[">=5.5.0 <5.5.1"],"fixed":["5.5.1"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-core","purl":"pkg:maven/org.springframework.security/spring-security-core","ranges":[">=5.4.0 <5.4.7"],"fixed":["5.4.7"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-core","purl":"pkg:maven/org.springframework.security/spring-security-core","ranges":[">=5.3.0 <5.3.10"],"fixed":["5.3.10"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-core","purl":"pkg:maven/org.springframework.security/spring-security-core","ranges":[">=5.2.0 <5.2.11"],"fixed":["5.2.11"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-oauth2-client","purl":"pkg:maven/org.springframework.security/spring-security-oauth2-client","ranges":[">=5.5.0 <5.5.1"],"fixed":["5.5.1"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-oauth2-client","purl":"pkg:maven/org.springframework.security/spring-security-oauth2-client","ranges":[">=5.4.0 <5.4.7"],"fixed":["5.4.7"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-oauth2-client","purl":"pkg:maven/org.springframework.security/spring-security-oauth2-client","ranges":[">=5.3.0 <5.3.10"],"fixed":["5.3.10"]},{"ecosystem":"Maven","name":"org.springframework.security:spring-security-oauth2-client","purl":"pkg:maven/org.springframework.security/spring-security-oauth2-client","ranges":[">=5.2.0 <5.2.11"],"fixed":["5.2.11"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}