Code Injection in protobufjs-cli - CVE-2026-44295
Published: May 12, 2026
Vulnerability identifier: #VU131161
CSH Severity: Medium
CVSS v4: 8.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44295
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper control of code generation in pbjs static code generation output when processing a crafted schema or JSON descriptor. A remote user can provide crafted schema names to inject attacker-controlled code into generated JavaScript output to execute arbitrary code.
User interaction is required because the generated JavaScript file must later be executed, imported, or otherwise evaluated.
Affected software
protobufjs-cli
How to mitigate CVE-2026-44295
Install security update from vendor's website.
protobufjs-cli - addressed in versions 1.2.1, 2.0.2