---
id: CVE-2026-44289
title: protobufjs compiles protobuf definitions into JavaScript (JS) functions
summary: >-
  protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior
  to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while
  decoding nested protobuf data. This affected both skipping unknown group
  fields and g…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-674
  - CWE-606
vendor: protobufjs_project
product: protobufjs
affected:
  - protobufjs < 7.5.6
  - 'protobufjs >= 8.0.0, < 8.0.2'
patched:
  - protobufjs 8.0.2
published: '2026-05-13'
updated: '2026-07-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44289'
references:
  - url: >-
      https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288q
    label: security-advisories@github.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-44289'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2477130'
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44289.json
    label: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
tags:
  - nvd
epss: 0.00684
epssPercentile: 0.50519
ingestedAt: '2026-07-01T15:50:58.835Z'
---

## Overview

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.

## Affected

- `protobufjs < 7.5.6`
- `protobufjs >= 8.0.0, < 8.0.2`

## Remediation

Upgrade past the affected range:

- `protobufjs 8.0.2`