REDHAT-BUG-2458634: High severity Bouncy Castle BC-JAVA bcpkix vulnerability

Published Apr 15, 2026
·
Updated

: Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules).

PKIX draft CompositeVerifier accepts empty signature sequence as valid.

This issue affects BC-JAVA: from 1.49 before 1.84.

Affected Software

1 affected component
Bouncy Castle BC-JAVA bcpkix>=1.49<1.84

Event History

Apr 15, 2026
Data Sourced
via Red Hat·10:01 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2458634?

The severity of REDHAT-BUG-2458634 is classified as high with a score of 7.

2

What does REDHAT-BUG-2458634 describe?

REDHAT-BUG-2458634 describes a vulnerability involving a broken or risky cryptographic algorithm in Bouncy Castle BC-JAVA, where the PKIX draft CompositeVerifier incorrectly accepts an empty signature sequence as valid.

3

Which versions of BC-JAVA are affected by REDHAT-BUG-2458634?

REDHAT-BUG-2458634 affects Bouncy Castle BC-JAVA versions from 1.49 up to but not including 1.84.

4

How do I fix REDHAT-BUG-2458634?

To remediate REDHAT-BUG-2458634, upgrade to a patched version of the Bouncy Castle BC-JAVA library that is 1.84 or later.

5

What impact does REDHAT-BUG-2458634 have on security?

The impact of REDHAT-BUG-2458634 is significant as it can allow an attacker to manipulate cryptographic validation processes, potentially leading to unauthorized access or data breaches.

Contact

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