Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.52 and 9.6.0-alpha.41, an authentication bypass vulnerability allows an attacker to log in as any user who has linked a third-party authentication provider, without knowing the user's credentials. The attacker only needs to know the user's provider ID to gain full access to their account, including a valid session token. This affects Parse Server deployments where the server option allowExpiredAuthDataToken is set to true. The default value is false. This issue has been patched in versions 8.6.52 and 9.6.0-alpha.41.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| parse-community | parse-server | < 8.6.52; >= 9.0.0, < 9.6.0-alpha.41 |
References
- https://github.com/parse-community/parse-server/commit/8d7df5639c4a35768fe8b78b4580b30e8a74721cPatch
- https://github.com/parse-community/parse-server/commit/98f4ba5bcf2c199bfe6225f672e8edcd08ba732dPatch
- https://github.com/parse-community/parse-server/pull/10246Issue Tracking
- https://github.com/parse-community/parse-server/pull/10247Issue Tracking
- https://github.com/parse-community/parse-server/security/advisories/GHSA-pfj7-wv7c-22prVendor Advisory
Timeline
- Published
- Mar 24, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed