VULNERABILITY INTELLIGENCE
CVE-2026-86117
CVSS score8.1 HIGH
EPSS probability0.67%
CISA KEVNot currently listed
Published2026-09-05
Last modified2026-09-10
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- disclosure@vulncheck.com: CWE-287