Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.11 and 8.6.37, Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all OAuth2 provider configurations. Under concurrent authentication requests for different OAuth2 providers, one provider's token validation may execute using another provider's configuration, potentially allowing a token that should be rejected by one provider to be accepted because it is validated against a different provider's policy. Deployments that configure multiple OAuth2 providers via the oauth2: true flag are affected. This vulnerability is fixed in 9.6.0-alpha.11 and 8.6.37.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-2cjm-2gwv-m892 | Parse Server's OAuth2 adapter shares mutable state across providers via singleton instance |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 12 Mar 2026 19:00:00 +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 9.6.0-alpha.11 and 8.6.37, Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all OAuth2 provider configurations. Under concurrent authentication requests for different OAuth2 providers, one provider's token validation may execute using another provider's configuration, potentially allowing a token that should be rejected by one provider to be accepted because it is validated against a different provider's policy. Deployments that configure multiple OAuth2 providers via the oauth2: true flag are affected. This vulnerability is fixed in 9.6.0-alpha.11 and 8.6.37. | |
| Title | Parse Server OAuth2 adapter shares mutable state across providers via singleton instance | |
| Weaknesses | CWE-362 | |
| References |
| |
| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-12T20:20:14.597Z
Reserved: 2026-03-11T14:47:05.685Z
Link: CVE-2026-32242
No data.
Status : Awaiting Analysis
Published: 2026-03-12T19:16:19.230
Modified: 2026-03-12T21:07:53.427
Link: CVE-2026-32242
No data.
OpenCVE Enrichment
No data.
Weaknesses
Github GHSA