CVE-2026-34224

Description

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, 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.

How to fix CVE-2026-34224

To remediate CVE-2026-34224, upgrade the affected package to a fixed version below.

• —upgrade to 8.6.64 or later
• —upgrade to 9.7.0-alpha.8 or later

Is CVE-2026-34224 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 8.6.64, >= 9.0.0, < 9.7.0
• >= 9.0.0, < 9.7.0-alpha.8

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-34224
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/commit/661f160edac8daac0486bc94413cf9652876ab92
• WEBgithub.com/parse-community/parse-server/commit/e7efbebba398ce6abe5b6b6fb9829c6ebe310fbf