CVEvulnerability
CVE-2025-34063
10.0 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2025-07-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 10.0 CRITICAL — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
- Weaknesses
- CWE-290
Description
A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure of a tenant’s SSO JWT signing key via the /api/adc/v4/configuration endpoint. An attacker in possession of the signing key can craft valid JWT tokens impersonating arbitrary users within a OneLogin tenant. The tokens allow authentication to the OneLogin SSO portal and all downstream applications federated via SAML or OIDC. This allows full unauthorized access across the victim’s SaaS environment.
Related
Weakness · CWE (1)
- CWE-290 Authentication Bypass by Spoofing weakness
References
- https://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-signing-keys/ specterops.io
- https://support.onelogin.com/product-notification/noti-00001768 support.onelogin.com
- https://vulncheck.com/advisories/onelogin-ad-connector-account-compromise vulncheck.com