Vulnerability DatabaseCVE-2026-33624
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CVE-2026-33624
March 24, 2026
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.
Affected Packages
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=2.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=2.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=2.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
https://github.com/parse-community/parse-server.git (GITHUB):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
parse-server (NPM):
Affected version(s) >=1.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
parse-server (NPM):
Affected version(s) >=1.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
parse-server (NPM):
Affected version(s) >=1.0.0 <8.6.60
Fix Suggestion:
Update to version 8.6.60
parse-server (NPM):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
parse-server (NPM):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
parse-server (NPM):
Affected version(s) >=9.0.0 <9.6.0-alpha.54
Fix Suggestion:
Update to version 9.6.0-alpha.54
Related Resources (7)
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/pull/10276
https://github.com/parse-community/parse-server/security/advisories/GHSA-2299-ghjr-6vjp
https://github.com/parse-community/parse-server/pull/10275
https://nvd.nist.gov/vuln/detail/CVE-2026-33624
https://github.com/parse-community/parse-server/commit/fc3da35a81d5083b453e8967cabcc880f1a3bd0c
https://github.com/parse-community/parse-server/commit/5e70094250a36bfcc14ecd49592be2b94fba66ff
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CVSS v4
Base Score:
2.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-367
EPSS
Base Score:
0.03