Access of Resource Using Incompatible Type ('Type Confusion') Affecting parse-server package, versions <8.6.70>=9.0.0 <9.7.0-alpha.16
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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- published1 Apr 2026
- disclosed1 Apr 2026
- creditbugbunny-research
Introduced: 1 Apr 2026
NewCVE-2026-34595 (opens in a new tab)How to fix?
Upgrade parse-server to version 8.6.70, 9.7.0-alpha.16 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 of Resource Using Incompatible Type ('Type Confusion') via the LiveQuery subscription process when an authenticated user with find class-level permission sends a subscription containing a $or, $and, or $nor operator value as an array-like object with numeric keys and a length property instead of an array. An attacker can infer the values of protected fields by observing subscription event responses and using them as a binary oracle.