CVE-2026-5598

EUVD-2026-22872
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 48%
Debian logo
Debian Releases
Debian Product
Codename
bouncycastle
bookworm
vulnerable
bullseye
1.68-2
fixed
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Common Weakness Enumeration
References
https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5
https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598
https://access.redhat.com/errata/RHSA-2026:12267
https://access.redhat.com/errata/RHSA-2026:12269
https://access.redhat.com/errata/RHSA-2026:18054
https://access.redhat.com/errata/RHSA-2026:18055
https://access.redhat.com/errata/RHSA-2026:18059
https://access.redhat.com/security/cve/CVE-2026-5598
https://bugzilla.redhat.com/show_bug.cgi?id=2458635
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json