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CVE-2026-44295

protobufjs-cli: Code injection in pbjs static output from crafted schema names

Published: May 13, 2026Updated: May 19, 2026 Sources: CVE List NVDCWE-94
8.7HIGH
NVD MITRE
EPSS Score
0.4%
Top 67.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.2.1 and 2.0.2, pbjs static code generation could emit unsafe JavaScript identifiers derived from schema-controlled names. When generating static JavaScript from a crafted schema or JSON descriptor, certain namespace, enum, service, or derived full names could be written into the generated output without sufficient sanitization. This vulnerability is fixed in 1.2.1 and 2.0.2.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-94

Affected Products

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

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-6r35-46g8-jcw9
github.com
News mentions
1

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