{"cve":"CVE-2020-10758","nvd":{"published":"2020-09-16T16:15:14.797","modified":"2026-06-17T02:48:23.477","status":"Modified","description":"A vulnerability was found in Keycloak before 11.0.1 where DoS attack is possible by sending twenty requests simultaneously to the specified keycloak server, all with a Content-Length header value that exceeds the actual byte count of the request body.","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-770"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1843849","https://github.com/keycloak/keycloak/commit/bee4ca89897766c4b68856eafe14f1a3dad34251","https://bugzilla.redhat.com/show_bug.cgi?id=1843849","https://github.com/keycloak/keycloak/commit/bee4ca89897766c4b68856eafe14f1a3dad34251"],"products":["redhat:keycloak","redhat:openshift_application_runtimes","redhat:single_sign-on"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-10758","score":0.01947,"percentile":0.80206,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-52rg-hpwq-qp56","url":"https://osv.dev/vulnerability/GHSA-52rg-hpwq-qp56","summary":"Allocation of Resources Without Limits or Throttling in Keycloak","modified":"2023-11-08T04:02:00.729587Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-parent","purl":"pkg:maven/org.keycloak/keycloak-parent","ranges":["<11.0.1"],"fixed":["11.0.1"]}]}],"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."]}