Parse Server: Auth provider validation bypass on login via partial authData
Published Mar 24, 2026
7.0
HIGHCVSS 4.0
EPSS 0.56%
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.
Affected products
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- Version < 8.6.52StatusaffectedConstraints-
- Version >= 9.0.0, < 9.6.0-alpha.41StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Parse-Community | Parse-Server | n/a |
|
- < 8.6.52
- ≥ 9.0.0 · < 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
- 9.6.0
No data.
No Red Hat product state for this CVE.
parse-server
npm
Introduced 9.0.0 Fixed 9.6.0-alpha.41parse-server
npm
Introduced 0 Fixed 8.6.52
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | parse-server | 9.0.0 | 9.6.0-alpha.41 |
| npm | parse-server | 0 | 8.6.52 |
Remediation
No remediation recorded yet.
References (8)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-14966 Advisory
- https://github.com/advisories/GHSA-pfj7-wv7c-22pr Advisory
- https://github.com/parse-community/parse-server/commit/8d7df5639c4a35768fe8b78b4580b30e8a74721c x_refsource_MISCPatch
- https://github.com/parse-community/parse-server/commit/98f4ba5bcf2c199bfe6225f672e8edcd08ba732d x_refsource_MISCPatch
- https://github.com/parse-community/parse-server/pull/10246 x_refsource_MISCIssue Tracking
- https://github.com/parse-community/parse-server/pull/10247 x_refsource_MISCIssue Tracking
- https://github.com/parse-community/parse-server/security/advisories/GHSA-pfj7-wv7c-22pr x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-33409
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-14966 | Advisory | |
| https://github.com/advisories/GHSA-pfj7-wv7c-22pr | Advisory | |
| https://github.com/parse-community/parse-server/commit/8d7df5639c4a35768fe8b78b4580b30e8a74721c | x_refsource_MISCPatch | |
| https://github.com/parse-community/parse-server/commit/98f4ba5bcf2c199bfe6225f672e8edcd08ba732d | x_refsource_MISCPatch | |
| https://github.com/parse-community/parse-server/pull/10246 | x_refsource_MISCIssue Tracking | |
| https://github.com/parse-community/parse-server/pull/10247 | x_refsource_MISCIssue Tracking | |
| https://github.com/parse-community/parse-server/security/advisories/GHSA-pfj7-wv7c-22pr | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-33409 |
Change history (0)
No recorded changes yet.