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
Base Score
CVSS 3.x
EPSS Score
Percentile: 56.95%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:1.84.0-1.redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.16.0-22.redhat_00057.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.3.14-11.SP11_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:1.5.26-2.Final_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.18.8-1.redhat_00003.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:5.0.31-3.SP2_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:1.10.0-46.Final_redhat_00044.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:4.1.135-1.Final_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:4.1.135-1.Final_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.5.5-30.SP12_redhat_00020.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.5.5-24.SP12_redhat_00016.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:2.2.40-2.SP3_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
0:7.4.25-2.GA_redhat_00001.1.el7eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8
0:1.84.0-1.redhat_00001.1.el8eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9
0:1.84.0-1.redhat_00001.1.el9eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 8
0:1.84.0-1.redhat_00001.1.el8eap ≤
𝑥
< *
ADP
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 9
0:1.84.0-1.redhat_00001.1.el9eap ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
bouncycastle
bookworm
vulnerable
bullseye
1.68-2
fixed
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
bouncycastle
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
xenial
ignored
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/errata/RHSA-2026:53644
https://access.redhat.com/errata/RHSA-2026:53806
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