Incorrect Authorization Affecting parse-server package, versions <8.6.6>=9.0.0-alpha.1 <9.5.0-alpha.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Mar 2026
- disclosed6 Mar 2026
- creditDevansh Batham
Introduced: 6 Mar 2026
NewCVE-2026-30229 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.6, 9.5.0-alpha.4 or higher.
Overview
parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js.
Affected versions of this package are vulnerable to Incorrect Authorization via the /loginAs endpoint when using the readOnlyMasterKey credential. An attacker can impersonate arbitrary users and gain full read and write access to their data by obtaining a valid session token through this endpoint.
Note: This is only exploitable if the readOnlyMasterKey is used in the deployment.