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CVE-2025-34063

OneLogin AD Connector JWT Authentication Bypass via Exposed Signing Key

Published: Jul 1, 2025Updated: Jul 3, 2025 Sources: CVE List NVD BDUCWE-290
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
0.5%
Top 59.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LC:HI:HA:H
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Impact
C:HConfidentiality
H
I:HIntegrity
H
A:HAvailability
H
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Weaknesses

CWE-290

Affected Products

OneLogin Active Directory Connector (ADC)One Identity
Mixed
Security Products / identity-access-mgmt
OneLogin AD ConnectorOne Identity
Mixed
Security Products / identity-access-mgmt
one identitycommercialSecurity Productsaka oneidentity

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
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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
and 1 more references View all →

Timeline

Published
Jul 1, 2025
Last Updated
Jul 3, 2025

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