Missing Required Cryptographic Step Affecting bouncycastle package, versions <0:1.70-4.amzn2023.0.8


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.27% (19th percentile)

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  • Snyk IDSNYK-AMZN2023-BOUNCYCASTLE-19820906
  • published15 Sept 2026
  • disclosed3 Aug 2026

Introduced: 3 Aug 2026

CVE-2026-59650  (opens in a new tab)
CWE-325  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 bouncycastle to version 0:1.70-4.amzn2023.0.8 or higher.
This issue was patched in ALAS2023-2026-2153.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bouncycastle package and not the bouncycastle package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12.

CVSS Base Scores

version 3.1