CVE-2026-5588

Description

Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules), Legion of the Bouncy Castle Inc. BCPKIX-FIPS bcpkix on All (pkix modules), Legion of the Bouncy Castle Inc. BCPIX-LTS bcpkix on All (pkix modules). This vulnerability is associated with program files JcaContentVerifierProviderBuilder.Java, JcaContentVerfierProviderBuilder.Java. This issue affects BC-JAVA: from 1.67 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84; BCPKIX-FIPS: from 2.0.6 before 2.0.11, from 2.1.7 before 2.1.11; BCPIX-LTS: from 2.73.7 before 2.73.11.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5588.json

https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905588

https://github.com/bcgit/bc-java/commit/656bae0dbd9b1521f840521ff786e78749fe3057

https://bugzilla.redhat.com/show_bug.cgi?id=2458634

https://access.redhat.com/security/cve/CVE-2026-5588

https://access.redhat.com/errata/RHSA-2026:21772

https://access.redhat.com/errata/RHSA-2026:18059

https://access.redhat.com/errata/RHSA-2026:18055

https://access.redhat.com/errata/RHSA-2026:18054

https://access.redhat.com/errata/RHSA-2026:17668

https://access.redhat.com/errata/RHSA-2026:14276

https://access.redhat.com/errata/RHSA-2026:14272

https://access.redhat.com/errata/RHSA-2026:13631

https://access.redhat.com/errata/RHSA-2026:11721

https://access.redhat.com/errata/RHSA-2026:11720

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS