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CVE-2026-45740

protobufjs: Denial of Service via unbounded recursive JSON descriptor expansion

Published: May 13, 2026Updated: May 13, 2026 Sources: CVE List NVDCWE-674
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 82.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-674

Affected Products

protobufjs
oss-projectaka protobuf.js
protobuf.jsLibrary
OSS Libraries / generic-library
protobufjs project
oss-projectaka protobufjs, protobufjs-cli
protobufjsLibrary
OSS Libraries / generic-library

Exploitability

Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-jggg-4jg4-v7c6
github.com

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