REDHAT-BUG-2477088: High severity protobufjs vulnerability

Published May 13, 2026
·
Updated

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the proto key. If an application constructed a message from an attacker-controlled plain object, an own enumerable proto property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.

Affected Software

2 affected components
protobufjs<7.5.6
protobufjs<8.0.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade protobufjs to a version that resolves this vulnerability.

    Fixed in 7.5.6
  2. Upgrade

    Upgrade protobufjs to a version that resolves this vulnerability.

    Fixed in 8.0.2

Event History

May 13, 2026
Data Sourced
via Red Hat·04:03 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2477088?

The severity of REDHAT-BUG-2477088 is classified as high, with a score of 7.

2

How do I fix REDHAT-BUG-2477088?

To mitigate REDHAT-BUG-2477088, upgrade protobufjs to version 7.5.6 or later, or to version 8.0.2 or later.

3

What are the risks associated with REDHAT-BUG-2477088?

The risks associated with REDHAT-BUG-2477088 include the potential for an attacker to exploit the vulnerability through crafted messages, leading to unauthorized property access.

4

Which versions of protobufjs are affected by REDHAT-BUG-2477088?

Versions prior to 7.5.6 and 8.0.2 of protobufjs are affected by REDHAT-BUG-2477088.

5

What is the impact of REDHAT-BUG-2477088 on applications?

The impact of REDHAT-BUG-2477088 on applications includes possible security breaches due to improper handling of prototype properties during message construction.

Contact

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