CVE-2026-86117 — Coolify through 4.3.17 OAuth Account Takeover via Unverified Email Matching
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 withou…
Published: 2026-09-05 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7