CVE 5.3 MEDIUM

protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion_CVE-2026-45740

5.3 / 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Description

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.

Basic Information

ID CVE-2026-45740
Source GitHub_M
Published May 13, 2026 at 14:46

Affected Product

Vendor protobufjs
Product protobuf.js
Version < 7.5.8
Affected Versions protobufjs protobuf.js < 7.5.8
protobufjs protobuf.js >= 8.0.0, < 8.2.0

CWE Classification

References

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