Uncontrolled Recursion Affecting protobufjs package, versions <7.5.8>=8.0.0 <8.2.0
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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Test your applications- Snyk IDSNYK-JS-PROTOBUFJS-16657755
- published14 May 2026
- disclosed13 May 2026
- creditFranciny Rojas
Introduced: 13 May 2026
CVE-2026-45740 (opens in a new tab)How to fix?
Upgrade protobufjs to version 7.5.8, 8.2.0 or higher.
Overview
protobufjs is a protocol buffer for JavaScript (& TypeScript).
Affected versions of this package are vulnerable to Uncontrolled Recursion through the Root.fromJSON or Namespace.addJSON functions. An attacker can cause resource exhaustion and disrupt service availability by submitting a crafted JSON descriptor with deeply nested namespace definitions.
Note:
This is only exploitable if all of the following conditions are met:
The application must load JSON descriptor data influenced by an attacker.
The crafted descriptor must contain deeply nested nested namespace objects.
The affected
Root.fromJSON()/Namespace.addJSON()descriptor expansion path must process the crafted input.