Feed/CVE-2026-59876
CVE-2026-59876MEDIUMCVSS 4.8

CVE-2026-59876

Published Jul 8, 2026·Updated Jul 20, 2026

NVD Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. From 8.2.0 until 8.6.5, the protobufjs Text Format extension parsed string-keyed map entries using ordinary property assignment, allowing a map entry with key __proto__ to change the prototype of the returned map object instead of creating an own map entry in protobufjs/ext/textformat. This issue is fixed in version 8.6.5.

Affected Packages (1)

protobufjsNPM
From 8.2.0
Fixed in = 8.6.4

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

References

View on NVD Search GitHub Search Google

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