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Non-constant time comparisons risk private key leakage in FrodoKEM.

Legion of the Bouncy Castle Inc. BC-JAVA · CVE-2026-5598
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What is it?

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
8.9
EPSS
1.0%
First seen
20 h ago
Status
corroborated

All Legion of the Bouncy Castle Inc. vulnerabilities