{"id":"CVE-2025-27935","aliases":["EUVD-2025-201281","GHSA-42cf-jg8h-gxrv"],"status":"published","title":"Authentication Bypass in OTP (One-time Passcode) IdP Adapter Integration Kit","description":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.","severity":{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00419,"percentile":0.36675,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2025-12-04T20:38:31Z","modified":"2026-10-18T15:10:00Z","products":[{"vendor":"ping identity","product":"one-time passcode integration kit for pingfederate"}],"references":[{"url":"https://support.pingidentity.com/s/article/SECADV051-PingFederate-OTP-Integration-Kit-authentication-bypass"},{"url":"https://www.pingidentity.com/en/resources/downloads/pingfederate.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27935"},{"url":"https://github.com/advisories/GHSA-42cf-jg8h-gxrv"}],"sources":{"cve":[{"id":"CVE-2025-27935","title":"Authentication Bypass in OTP (One-time Passcode) IdP Adapter Integration Kit","description":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.","status":"published","published":"2025-12-04T20:38:31.922Z","modified":"2025-12-05T17:33:20.91Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:32:42.078906Z"}],"euvd":[{"id":"EUVD-2025-201281","description":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.","status":"published","published":"2025-12-04T20:38:31Z","modified":"2025-12-05T17:33:20Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:49:09.437744Z"}],"ghsa":[{"id":"GHSA-42cf-jg8h-gxrv","title":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state...","description":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.","status":"published","published":"2025-12-04T21:31:06Z","modified":"2025-12-04T21:31:13Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:05:03.172685Z"}],"nvd":[{"id":"CVE-2025-27935","description":"The OTP Integration Kit for PingFederate fails to enforce HTTP method validation and state validation properly. The server advances the authentication state without verifying the OTP, thereby bypassing multi-factor authentication.","status":"published","published":"2025-12-04T21:16:08.473Z","modified":"2026-10-18T15:10:00.097Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:11:47.746175Z"}]}}