Incorrect Authorization Affecting parse-server package, versions <8.6.18>=9.0.0-alpha.1 <9.5.2-alpha.5
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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- published15 Mar 2026
- disclosed11 Mar 2026
- creditrestriction
Introduced: 11 Mar 2026
NewCVE-2026-30949 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.18, 9.5.2-alpha.5 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 in the Keycloak authentication adapter due to missing validation of the azp claim in access tokens against the configured client ID. An attacker can gain unauthorized access to user accounts by presenting a valid access token issued for a different client application within the same Keycloak realm.
Note: This is only exploitable if the Keycloak realm contains multiple client applications and the Keycloak authentication adapter is used.