Ghostwire

CVE-2026-5598: Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). Non-constant...

CRITICAL CVSS 9.5 EPSS 0.04%

Published: April 15, 2026 | Last Modified: April 15, 2026

Description

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). Non-constant time comparisons risk private key leakage in FrodoKEM. This issue affects BC-JAVA: from 2.17.3 before 1.84.

Ghostwire Analysis — What This Means Practically

Exploitation Probability (EPSS): Low — 0.04% (14th percentile)

Low exploitation probability based on current threat landscape data. Standard patching timeline is appropriate.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (1 articles)

References