What is CVE-2026-44295?

CVE-2026-44295 is a high-severity vulnerability in Protobufjs Protobuf.js, classified under Code Injection. CVSS score: 8.7/10. Published 2026-05-13.

How severe is CVE-2026-44295?

High severity. CVSS v3 base score is 8.7 out of 10.

RCE in Protobufjs Protobuf.js

CVE-2026-44295

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 crafte…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.000 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Protobufjs Protobuf.js — versions >= 2.0.0, < 2.0.2, < 1.2.1
Protobufjs_project Protobufjs-cli

Weakness classification (CWE)

CWE-94 — Code Injection

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44295?: CVE-2026-44295 is a high-severity vulnerability in Protobufjs Protobuf.js, classified under Code Injection. CVSS score: 8.7/10. Published 2026-05-13.
How severe is CVE-2026-44295?: High severity. CVSS v3 base score is 8.7 out of 10.