Coolify through 4.3.17 contains an authentication bypass vulnerability in the OAuth callback handler that signs users into existing accounts based solely on email address without verifying provider assertions or binding OAuth identities. Attackers can register a victim's email address on any enabled OAuth provider to obtain authenticated sessions as that user, bypassing password requirements and two-factor authentication.
Metrics
Affected Vendors & Products
References
History
Sat, 05 Sep 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Coolify through 4.3.17 contains an authentication bypass vulnerability in the OAuth callback handler that signs users into existing accounts based solely on email address without verifying provider assertions or binding OAuth identities. Attackers can register a victim's email address on any enabled OAuth provider to obtain authenticated sessions as that user, bypassing password requirements and two-factor authentication. | |
| Title | Coolify through 4.3.17 OAuth Account Takeover via Unverified Email Matching | |
| First Time appeared |
Coollabs
Coollabs coolify |
|
| Weaknesses | CWE-287 | |
| CPEs | cpe:2.3:a:coollabs:coolify:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Coollabs
Coollabs coolify |
|
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-05T09:59:07.349Z
Updated: 2026-09-05T09:59:07.349Z
Reserved: 2026-09-05T01:59:21.369Z
Link: CVE-2026-86117
No data.
Status : Deferred
Published: 2026-09-05T10:16:42.860
Modified: 2026-09-09T20:20:21.673
Link: CVE-2026-86117
No data.