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.
Published: 2026-05-13
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 14 May 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Protobuf
Protobuf protobuf
Vendors & Products Protobuf
Protobuf protobuf

Wed, 13 May 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Protobufjs Project
Protobufjs Project protobufjs
CPEs cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*
Vendors & Products Protobufjs Project
Protobufjs Project protobufjs

Wed, 13 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 13 May 2026 15:15:00 +0000

Type Values Removed Values Added
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.
Title protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Protobuf Protobuf
Protobufjs Project Protobufjs
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-13T18:20:12.394Z

Reserved: 2026-05-13T06:54:34.219Z

Link: CVE-2026-45740

cve-icon Vulnrichment

Updated: 2026-05-13T18:14:56.640Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-13T16:17:00.520

Modified: 2026-05-13T20:50:15.587

Link: CVE-2026-45740

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T14:30:15Z

Weaknesses