{"cve":"CVE-2025-64102","nvd":{"published":"2025-10-29T19:15:38.927","modified":"2026-10-19T13:10:00.110","status":"Analyzed","description":"Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout mechanism. The mechanism is not enabled by default and can cause a denial of service for the corresponding user if enabled. Additionally, the mitigation strategies were not fully implemented in the more recent resource-based APIs. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-307"],"references":["https://github.com/zitadel/zitadel/commit/b8db8cdf9cc8ea13f461758aef12457f8b7d972a","https://github.com/zitadel/zitadel/security/advisories/GHSA-xrw9-r35x-x878"],"products":["zitadel:zitadel"],"source":"nvd","synced_at":"2026-10-19T22:14:53.307938015+00:00"},"epss":{"cve":"CVE-2025-64102","score":0.0037,"percentile":0.30621,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-xrw9-r35x-x878","url":"https://osv.dev/vulnerability/GHSA-xrw9-r35x-x878","summary":"Zitadel allows brute-forcing authentication factors","modified":"2025-11-05T22:13:38Z","packages":[{"ecosystem":"Go","name":"github.com/zitadel/zitadel/v2","purl":"pkg:golang/github.com/zitadel/zitadel/v2","ranges":["<2.71.18"],"fixed":["2.71.18"]},{"ecosystem":"Go","name":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","ranges":["<1.80.0-v2.20.0.20251029090735-b8db8cdf9cc8"],"fixed":["1.80.0-v2.20.0.20251029090735-b8db8cdf9cc8"]}]},{"id":"GO-2025-4085","url":"https://osv.dev/vulnerability/GO-2025-4085","summary":"Zitadel allows brute-forcing authentication factors in github.com/zitadel/zitadel","modified":"2025-11-05T19:57:10.521311Z","packages":[{"ecosystem":"Go","name":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","ranges":["all versions"],"fixed":[]}]}],"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."]}