CVE-2026-30967

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/10/2026

Last Modified3/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

parseplatform:parse-server

Weaknesses (CWE)

CWE-287

References

https://github.com/parse-community/parse-server/releases/tag/8.6.22(security-advisories@github.com)

https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.9(security-advisories@github.com)

https://github.com/parse-community/parse-server/security/advisories/GHSA-fr88-w35c-r596(security-advisories@github.com)

IOC Correlations

No correlations recorded

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