CVE-2026-59643 in Bouncy Castle for Java

Summary

by MITRE • 08/03/2026

In Bouncy Castle for Java before 1.85, OpenPGP inline-signature policy failures silently ignored. This issue also affects Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 2.0.13.

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• Responsible: Bcorg
• Reservation: 07/06/2026
• Disclosure: 08/03/2026
• Moderation: accepted
• Entry: VDB-385437
• CPE: ready
• CWE: CWE-693 (confirmed)
• CVSS: 6.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low
• Sector: Education, Chemical, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-59643
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59643
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-59643/