{"id":"CVE-2021-22119","aliases":["EUVD-2021-1497","GHSA-w9jg-gvgr-354m"],"status":"published","title":"Resource Exhaustion in Spring Security","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.06001,"percentile":0.93419,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-400","CWE-863"],"published":"2021-06-29T16:15:05Z","modified":"2026-10-24T10:30:59Z","exploits":[{"source":"pocgithub","id":"mari6274/oauth-client-exploit","title":"mari6274/oauth-client-exploit","date":"2021-11-02","url":"https://github.com/mari6274/oauth-client-exploit"}],"fixes":[{"ecosystem":"Maven","package":"org.springframework.security:spring-security-core","fixed_in":["5.5.1","5.4.7","5.3.10","5.2.11"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","fixed_in":["5.5.1","5.4.7","5.3.10","5.2.11"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.5.1"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.4.7"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.5.1"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.4.7"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"last_affected":"5.3.9"},{"fixed":"5.3.10"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"last_affected":"5.2.10"},{"fixed":"5.2.11"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"last_affected":"5.3.9"},{"fixed":"5.3.10"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"last_affected":"5.2.10"},{"fixed":"5.2.11"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.5.1"}]}],"versions":["5.5.0"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.4.7"}]}],"versions":["5.4.0","5.4.1","5.4.2","5.4.3","5.4.4","5.4.5","5.4.6"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"fixed":"5.3.10"}]}],"versions":["5.3.0.RELEASE","5.3.1.RELEASE","5.3.2.RELEASE","5.3.3.RELEASE","5.3.4.RELEASE","5.3.5.RELEASE","5.3.6.RELEASE","5.3.7.RELEASE","5.3.8.RELEASE","5.3.9.RELEASE"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.2.11"}]}],"versions":["5.2.0.RELEASE","5.2.1.RELEASE","5.2.10.RELEASE","5.2.2.RELEASE","5.2.3.RELEASE","5.2.4.RELEASE","5.2.5.RELEASE","5.2.6.RELEASE","5.2.7.RELEASE","5.2.8.RELEASE","5.2.9.RELEASE"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.5.1"}]}],"versions":["5.5.0"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"5.4.7"}]}],"versions":["5.4.0","5.4.1","5.4.2","5.4.3","5.4.4","5.4.5","5.4.6"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"fixed":"5.3.10"}]}],"versions":["5.3.0.RELEASE","5.3.1.RELEASE","5.3.2.RELEASE","5.3.3.RELEASE","5.3.4.RELEASE","5.3.5.RELEASE","5.3.6.RELEASE","5.3.7.RELEASE","5.3.8.RELEASE","5.3.9.RELEASE"]},{"source":"osv","ecosystem":"Maven","package":"org.springframework.security:spring-security-oauth2-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.2.11"}]}],"versions":["5.2.0.RELEASE","5.2.1.RELEASE","5.2.10.RELEASE","5.2.2.RELEASE","5.2.3.RELEASE","5.2.4.RELEASE","5.2.5.RELEASE","5.2.6.RELEASE","5.2.7.RELEASE","5.2.8.RELEASE","5.2.9.RELEASE"]}],"products":[{"vendor":"oracle","product":"communications_cloud_native_core_policy"},{"vendor":"spring","product":"spring security"},{"vendor":"vmware","product":"spring_security"}],"references":[{"url":"https://tanzu.vmware.com/security/cve-2021-22119","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://lists.apache.org/thread.html/r163b3e4e39803882f5be05ee8606b2b9812920e196daa2a82997ce14%40%3Cpluto-dev.portals.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r390783b3b1c59b978131ac08390bf77fbb3863270cbde59d5b0f5fde%40%3Cpluto-dev.portals.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r3868207b967f926819fe3aa8d33f1666429be589bb4a62104a49f4e3%40%3Cpluto-dev.portals.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r89aa1b48a827f5641310305214547f1d6b2101971a49b624737c497f%40%3Cpluto-dev.portals.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/ra53677224fe4f04c2599abc88032076faa18dc84b329cdeba85d4cfc%40%3Cpluto-scm.portals.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://lists.apache.org/thread.html/r08a449010786e0bcffa4b5781b04fcb55d6eafa62cb79b8347680aad%40%3Cissues.nifi.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22119","tags":["advisory"]},{"url":"https://github.com/spring-projects/spring-security/pull/9513","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r163b3e4e39803882f5be05ee8606b2b9812920e196daa2a82997ce14@%3Cpluto-dev.portals.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r3868207b967f926819fe3aa8d33f1666429be589bb4a62104a49f4e3@%3Cpluto-dev.portals.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r390783b3b1c59b978131ac08390bf77fbb3863270cbde59d5b0f5fde@%3Cpluto-dev.portals.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r89aa1b48a827f5641310305214547f1d6b2101971a49b624737c497f@%3Cpluto-dev.portals.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/ra53677224fe4f04c2599abc88032076faa18dc84b329cdeba85d4cfc@%3Cpluto-scm.portals.apache.org%3E","tags":["web"]},{"url":"https://lists.apache.org/thread.html/r08a449010786e0bcffa4b5781b04fcb55d6eafa62cb79b8347680aad@%3Cissues.nifi.apache.org%3E","tags":["web"]},{"url":"https://github.com/advisories/GHSA-w9jg-gvgr-354m"},{"url":"https://github.com/spring-projects/spring-security","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-22119","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.","status":"published","published":"2021-06-29T16:15:05Z","modified":"2024-08-03T18:30:23.943Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:32:58.028461Z"}],"euvd":[{"id":"EUVD-2021-1497","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.","status":"published","published":"2021-06-29T16:15:05Z","modified":"2024-08-03T18:30:23Z","updated_at":"2026-11-03T03:25:04.094929Z"}],"ghsa":[{"id":"GHSA-w9jg-gvgr-354m","title":"Resource Exhaustion in Spring Security","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.","status":"published","published":"2021-07-02T18:33:34Z","modified":"2023-01-27T05:02:19Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-863"],"updated_at":"2026-11-02T14:36:17.742171Z"}],"nvd":[{"id":"CVE-2021-22119","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.","status":"published","published":"2021-06-29T17:15:08.143Z","modified":"2026-06-17T03:36:39.027Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-863"],"updated_at":"2026-11-02T14:06:55.259633Z"}],"osv":[{"id":"CVE-2021-22119","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.","status":"published","published":"2021-06-29T17:15:08.143Z","modified":"2026-10-24T10:30:59.558711237Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"GHSA-w9jg-gvgr-354m","title":"Resource Exhaustion in Spring Security","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.","status":"published","published":"2021-07-02T18:33:34Z","modified":"2023-11-08T04:04:54.19337Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-863"],"updated_at":"2026-11-02T15:46:58.401149Z"}]}}