PT-2026-25999 · Npm · Parse Server

Published 2026-03-17 · Updated 2026-03-17 · CVE-2026-33042

OSV

CVSS v4.0

6.9

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Impact

A user can sign up without providing credentials by sending an empty authData object, bypassing the username and password requirement. This allows the creation of authenticated sessions without proper credentials, even when anonymous users are disabled.

Patches

The fix ensures that empty or non-actionable authData is treated the same as absent authData for the purpose of credential validation on new user creation. Username and password are now required when no valid auth provider data is present.

Workarounds

Use a Cloud Code beforeSave trigger on the User class to reject signups where authData is empty and no username/password is provided.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-33042

GHSA-WJQW-R9X4-J59V

Affected Products

Parse Server

References · 5

• https://osv.dev/vulnerability/GHSA-wjqw-r9x4-j59v · Vendor Advisory
• https://github.com/parse-community/parse-server · Note
• https://github.com/parse-community/parse-server/security/advisories/GHSA-wjqw-r9x4-j59v · Note
• https://github.com/parse-community/parse-server/pull/10219 · Note
• https://github.com/parse-community/parse-server/pull/10220 · Note