---
id: CVE-2026-59641
title: >-
  In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted
  signingTime for path validation
summary: >-
  In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted
  signingTime for path validation. This issue also affects Bouncy Castle for
  Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before
  bcmail-fip…
severity: none
cwe:
  - CWE-345
published: '2026-08-03'
updated: '2026-08-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59641'
references:
  - url: >-
      https://github.com/bcgit/bc-java/commit/2f81b22d559b3a1b026388e1ca78dd547384def8
    label: 91579145-5d7b-4cc5-b925-a0262ff19630
  - url: >-
      https://github.com/bcgit/bc-java/commit/fd89fe918b37fea1c71e95fae50284a325b09721
    label: 91579145-5d7b-4cc5-b925-a0262ff19630
  - url: 'https://github.com/bcgit/bc-java/wiki/CVE-2026-59641'
    label: 91579145-5d7b-4cc5-b925-a0262ff19630
tags:
  - nvd
ingestedAt: '2026-08-03T01:21:07.785Z'
epss: 0.00146
epssPercentile: 0.04259
---

## Overview

In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0.7 (1.0.X series), 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series).

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.