Parse Server's MFA recovery codes not consumed after use

Description

When multi-factor authentication (MFA) via TOTP is enabled for a user account, Parse Server generates two single-use recovery codes. These codes are intended as a fallback when the user cannot provide a TOTP token. However, recovery codes are not consumed after use, allowing the same recovery code to be used an unlimited number of times.

Recommendation

Update the parse-server package to the latest compatible version. Followings are version details:

• Affected version(s): **< 8.6.33

  >= 9.0.0-alpha.1, < 9.6.0-alpha.7**

• Patched version(s): **8.6.33

  9.6.0-alpha.7**

References

• GHSA-4hf6-3x24-c9m8
• CVE-2026-31875
• CWE-672
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Parse Server: MFA recovery code single-use bypass via concurrent requests - CVE-2026-33624
• Parse Server has a password reset token single-use bypass via concurrent requests - CVE-2026-32943
• Parse Server vulnerable to stored cross-site scripting (XSS) via SVG file upload - CVE-2026-30948
• Parse Server LiveQuery subscription query depth bypass - CVE-2026-33508

Tags:

npm

parse-server