CVE-2026-45740
CVE-2026-45740 · protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion
This page contains facts from public vulnerability sources. Check the original advisory before updating.
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.8 and 8.2.0, protobufjs could recurse without a depth limit while expanding nested JSON descriptors through Root.fromJSON() and Namespace.addJSON(). A crafted JSON descriptor with deeply nested namespace definitions could cause the JavaScript call stack to be exhausted during descriptor loading. This vulnerability is fixed in 7.5.8 and 8.2.0.
CVSS 5.3 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
protobuf.js
- Versions
- < 7.5.8: Affected
- >= 8.0.0, < 8.2.0: Affected
No fix published
protobufjs npm
- Affected ranges
- SEMVER: < 7.5.8
Update to 7.5.8
protobufjs npm
- Affected ranges
- SEMVER: ≥ 8.0.0, < 8.2.0
Update to 8.2.0