SEPTEMBER 20, 2026
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Case File

CVE-2026-59643

HIGH · CVSS 8.7 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 versions prior to 1.85 and Bouncy Castle for Java FIPS before bcpg-fips 2.0.13 are vulnerable due to a failure to properly enforce inline-signature policies in OpenPGP, which could lead to undetected signature validation issues. This vulnerability may allow attackers to exploit the lack of proper signature verification, potentially compromising the integrity of cryptographic operations. Organizations utilizing these versions for cryptographic functions should prioritize updating to mitigate risks associated with this oversight.

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-2026-59643
Severity
HIGH
CVSS
8.7
EPSS
0.18%
Java

Original NVD Description

In Bouncy Castle for Java before 1.85, OpenPGP inline-signature policy failures silently ignored. This issue also affects Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 2.0.13.