Uncontrolled Recursion Affecting protobufjs-cli package, versions <1.2.1>=2.0.0-experimental <2.0.2
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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Start learning- Snyk IDSNYK-JS-PROTOBUFJSCLI-16643263
- published13 May 2026
- disclosed12 May 2026
- creditPeak Twilight, VladimirEliTokarev, AKileX, ByunSuyoung
Introduced: 12 May 2026
NewCVE-2026-44289 (opens in a new tab)How to fix?
Upgrade protobufjs-cli to version 1.2.1, 2.0.2 or higher.
Overview
protobufjs-cli is a Translates between file formats and generates static code as well as TypeScript definitions.
Affected versions of this package are vulnerable to Uncontrolled Recursion through unbounded recursion when decoding nested message fields. An attacker can exhaust the call stack and cause the application to crash by supplying specially crafted protobuf binary data containing deeply nested structures.
Workaround
This vulnerability can be mitigated by rejecting excessively nested messages at an outer protocol boundary or isolating protobuf decoding in a process that can be safely restarted.