CVE-2026-34224
MediumCVSS 4.4Exploitation Probability (EPSS)
Low risk23th percentile - higher than 23% of all known CVEs
Summary
In Parse Server before versions 8.6.64 and 9.7.0-alpha.8, an attacker with a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple authenticated sessions by sending concurrent login requests to the authData endpoint. This defeats the single-use guarantee of MFA codes, allowing session persistence even after the legitimate user revokes detected sessions.
Risk Assessment
The organization risks compromise of multi-factor authentication, potentially allowing an attacker to maintain account access despite remediation actions.
Recommendation
Update Parse Server to version 8.6.64 or 9.7.0-alpha.8 (or later), which contain the fix.
Original NVD description (English source)
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.64 and 9.7.0-alpha.8, an attacker who possesses a valid authentication provider token and a single MFA recovery code or SMS one-time password can create multiple authenticated sessions by sending concurrent login requests via the authData login endpoint. This defeats the single-use guarantee of MFA recovery codes and SMS one-time passwords, allowing session persistence even after the legitimate user revokes detected sessions. This issue has been patched in versions 8.6.64 and 9.7.0-alpha.8.