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CVE-2026-41242

protobufjs has an arbitrary code execution issue

Published: Apr 18, 2026Updated: Apr 23, 2026 Sources: CVE List NVD BDUCWE-94
9.8CRITICAL
NVD MITRE
EPSS Score
0.6%
Top 57.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. In versions prior to 8.0.1 and 7.5.5, attackers can inject arbitrary code in the "type" fields of protobuf definitions, which will then execute during object decoding using that definition. Versions 8.0.1 and 7.5.5 patch the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

protobuf.jsprotobufjs
Library
OSS Libraries / generic-library
protobufjsprotobufjs project
Library
OSS Libraries / generic-library
protobufjsСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
protobufjsoss-projectOSS Librariesaka protobuf.js, protobufjs
protobufjs projectoss-projectOSS Librariesaka protobufjs, protobufjs-cli
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-xq3m-2v4x-88gg
github.com
https://github.com/protobufjs/protobuf.js/commit/535df444ac060243722ac5d672db205e5c531d75
github.com
https://github.com/protobufjs/protobuf.js/commit/ff7b2afef8754837cc6dc64c864cd111ab477956
github.com
and 4 more references View all →

Timeline

Published
Apr 18, 2026
Last Updated
Apr 23, 2026

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