Access Control Bypass Affecting parse-server package, versions <8.6.89>=9.0.0 <9.10.1-alpha.8
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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- published28 Sept 2026
- disclosed26 Sept 2026
- creditUnknown
Introduced: 26 Sep 2026
NewCVE-2026-100632 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.89, 9.10.1-alpha.8 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 Access Control Bypass via the LiveQuery subsystem in ParseLiveQueryServer.ts, which fails to load role memberships before evaluating role-scoped protectedFields groups. When a subscriber's session token is absent from the subscribe frame, the server resolves identity against an empty Auth.userRoles list, causing every role: group in protectedFields to be silently skipped. As a result, an authenticated attacker can receive LiveQuery events that include fields the REST API would have stripped for the same caller.