AIKIDO-2026-10631
bcprov-jdk15to18 is vulnerable to Observable Timing Discrepancy
89
High Risk
This Affects:
bcprov-jdk15to18TL;DR
A covert timing channel vulnerability exists in Legion of the Bouncy Castle Inc. BC-JAVA core across all core modules. The issue is associated with the FrodoEngine.java component and affects BC-JAVA versions 1.71 through 1.83, fixed in 1.84.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
bcprov-jdk15to18 is vulnerable to Observable Timing Discrepancy in versions 1.71 - 1.83.
How to fix this
Upgrade the org.bouncycastle:bcprov-jdk15to18 library to the patch version.
Links
Fix Commits
github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87Other
github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598
access.redhat.com/errata/RHSA-2026:12267access.redhat.com/errata/RHSA-2026:12269access.redhat.com/errata/RHSA-2026:18054access.redhat.com/errata/RHSA-2026:18055access.redhat.com/errata/RHSA-2026:18059access.redhat.com/errata/RHSA-2026:53644access.redhat.com/errata/RHSA-2026:53806access.redhat.com/security/cve/CVE-2026-5598bugzilla.redhat.com/show_bug.cgi?id=2458635security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
FedRAMPImplementing© All Intel data is openly available and commercially licensed.