{"cve":"CVE-2023-6841","nvd":{"published":"2024-09-10T17:15:15.170","modified":"2026-06-17T06:51:31.290","status":"Modified","description":"A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited,an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values.","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-231"],"references":["https://access.redhat.com/security/cve/CVE-2023-6841","https://bugzilla.redhat.com/show_bug.cgi?id=2254714"],"products":["redhat:keycloak","redhat:single_sign-on"],"source":"nvd","synced_at":"2026-10-19T21:54:38.012257375+00:00"},"epss":{"cve":"CVE-2023-6841","score":0.00736,"percentile":0.54474,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w97f-w3hq-36g2","url":"https://osv.dev/vulnerability/GHSA-w97f-w3hq-36g2","summary":"Keycloak Denial of Service vulnerability","modified":"2026-09-10T03:50:19.079526021Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-core","purl":"pkg:maven/org.keycloak/keycloak-core","ranges":["<24.0.0"],"fixed":["24.0.0"]}]}],"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."]}