Vulnerability DatabaseCVE-2026-5598
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CVE-2026-5598
Published:April 15, 2026
Updated:April 21, 2026
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 1.84.
Affected Packages
https://github.com/bcgit/bc-java.git (GITHUB):
Affected version(s) >=r1rv49 <r1rv84
Fix Suggestion:
Update to version r1rv84
org.bouncycastle:bcprov-jdk15to18 (JAVA):
Affected version(s) >=1.63 <1.84
Fix Suggestion:
Update to version 1.84
org.bouncycastle:bcprov-jdk18on (JAVA):
Affected version(s) >=1.71 <1.84
Fix Suggestion:
Update to version 1.84
org.bouncycastle:bcprov-jdk14 (JAVA):
Affected version(s) >=1.30 <1.84
Fix Suggestion:
Update to version 1.84
Related Resources (4)
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905998
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598
https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5
https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87
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CVSS v4
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
10
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Covert Timing Channel
CWE-385
EPSS
Base Score:
0.04