CVE-2026-33624

Low

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.60 and 9.6.0-alpha.54, an attacker who obtains a user's password and a single MFA recovery code can reuse that recovery code an unlimited number of times by sending concurrent login requests. This defeats the single-use design of recovery codes. The attack requires the user's password, a valid recovery code, and the ability to send concurrent requests within milliseconds. This issue has been patched in versions 8.6.60 and 9.6.0-alpha.54.

SeverityLow
CVSS2.7
Exploit probability—
ProductParseplatform Parse-server
PublishedMar 24, 2026
First seenMar 24, 2026
Weakness typeCWE-367CWE-367

How to fix

Update
  • parseplatform parse-server8.6.60, 9.6.0 or later
  • parse-server9.6.0-alpha.54, 8.6.60 or later

Affected products

ProductAffected versionsFixed in
parseplatform parse-serverv < 8.6.60, 9.0.0 ≤ v < 9.6.0, 9.6.08.6.60, 9.6.0
parse-servernpm9.0.0 ≤ v < 9.6.0-alpha.54, v < 8.6.609.6.0-alpha.54, 8.6.60

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