cvedb.io
CVE-2026-44292
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-05-13T16:16:56.123 · Last modified 2026-06-17T10:50:27.327

Summary

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the __proto__ key. If an application constructed a message from an attacker-controlled plain object, an own enumerable __proto__ property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.

Affected products

protobufjs_project — protobufjs

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.