Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.9. and 8.6.22, the OAuth2 authentication adapter, when configured without the useridField option, only verifies that a token is active via the provider's token introspection endpoint, but does not verify that the token belongs to the user identified by authData.id. An attacker with any valid OAuth2 token from the same provider can authenticate as any other user. This affects any Parse Server deployment that uses the generic OAuth2 authentication adapter (configured with oauth2: true) without setting the useridField option. This vulnerability is fixed in 9.5.2-alpha.9. and 8.6.22.
Project Subscriptions
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Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-fr88-w35c-r596 | Parse Server OAuth2 authentication adapter account takeover via identity spoofing |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 10 Mar 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.9. and 8.6.22, the OAuth2 authentication adapter, when configured without the useridField option, only verifies that a token is active via the provider's token introspection endpoint, but does not verify that the token belongs to the user identified by authData.id. An attacker with any valid OAuth2 token from the same provider can authenticate as any other user. This affects any Parse Server deployment that uses the generic OAuth2 authentication adapter (configured with oauth2: true) without setting the useridField option. This vulnerability is fixed in 9.5.2-alpha.9. and 8.6.22. | |
| Title | Parse Server OAuth2 authentication adapter account takeover via identity spoofing | |
| Weaknesses | CWE-287 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-10T20:46:40.222Z
Reserved: 2026-03-07T17:53:48.815Z
Link: CVE-2026-30967
No data.
Status : Received
Published: 2026-03-10T21:16:49.183
Modified: 2026-03-10T21:16:49.183
Link: CVE-2026-30967
No data.
OpenCVE Enrichment
No data.
Weaknesses
Github GHSA