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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-86117

Coolify through 4.3.17 OAuth Account Takeover via Unverified Email Matching

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

coollabsio coolify

Default version status: unaffected

  • 0 to ≤ 4.3.17affected
pkg:github/coollabsio/coolify

References