SEPTEMBER 20, 2026
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Case File

CVE-2026-59649

HIGH · CVSS 8.7 EPSS 0.28% 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, as well as specific LTS and FIPS versions, are vulnerable due to an issue where the OpenPGP user-attribute subpacket length is only limited by the maximum memory of the JVM. This could potentially lead to resource exhaustion or denial of service attacks. Organizations using these versions for cryptographic operations should prioritize patching to mitigate the risk associated with this vulnerability.

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-2026-59649
Severity
HIGH
CVSS
8.7
EPSS
0.28%
Java

Original NVD Description

In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).