SEPTEMBER 20, 2026
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Case File

CVE-2026-59651

HIGH · CVSS 7.1 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-03 · Last synced 2026-09-02

CyberRota Analysis

AI-Generated

Bouncy Castle for Java prior to version 1.85, and LTS versions before 2.73.12, are vulnerable due to the BKS keystore's acceptance of a legacy version that utilizes a 16-bit integrity MAC key, which compromises cryptographic integrity. This vulnerability could allow attackers to exploit weak integrity checks, potentially leading to unauthorized access or data manipulation. Organizations using affected versions of Bouncy Castle should prioritize upgrading to mitigate risks associated with this weakness.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-59651
Severity
HIGH
CVSS
7.1
EPSS
0.18%
Java

Original NVD Description

In Bouncy Castle for Java before 1.85, BKS keystore accepts legacy version with 16-bit integrity MAC key. This issue also affects Bouncy Castle for Java LTS before 2.73.12.