CVE-2026-5598
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.
- CVSS 4.0
- 8.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:P/AU:Y/U:Red - CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-26)
- CWE
- CWE-385
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p93r-85wp-75v3 | Maven | org.bouncycastle:bcprov-jdk15to18 | >=1.71 <1.80.2 | 1.80.2 |
| GHSA-p93r-85wp-75v3 | Maven | org.bouncycastle:bcprov-jdk14 | >=1.81 <1.81.1 | 1.81.1 |
| GHSA-p93r-85wp-75v3 | Maven | org.bouncycastle:bcprov-jdk18on | >=1.82 <1.84 | 1.84 |
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