Infinite loop Affecting protobufjs package, versions >=7.5.0 <7.6.5>=8.0.0 <8.6.6
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-17900550
- published9 Jul 2026
- disclosed8 Jul 2026
- creditBil (berd)
Introduced: 8 Jul 2026
NewCVE-2026-59877 (opens in a new tab)How to fix?
Upgrade protobufjs to version 7.6.5, 8.6.6 or higher.
Overview
protobufjs is a protocol buffer for JavaScript (& TypeScript).
Affected versions of this package are vulnerable to Infinite loop in the option parsing. An attacker can cause the application to enter an infinite loop by submitting a crafted .proto schema that opens an option declaration and ends prematurely.