What is CVE-2026-44294?

CVE-2026-44294 is a medium-severity vulnerability in Protobufjs Protobuf.js, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-05-13.

How severe is CVE-2026-44294?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Protobufjs Protobuf.js

CVE-2026-44294

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript property accessors from schema-controlled field and oneof names. Certain control characters in field names w…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Protobufjs Protobuf.js — versions < 7.5.6, >= 8.0.0, < 8.0.2
Protobufjs_project Protobufjs

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-44294?: CVE-2026-44294 is a medium-severity vulnerability in Protobufjs Protobuf.js, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-05-13.
How severe is CVE-2026-44294?: Medium severity. CVSS v3 base score is 5.3 out of 10.