CVE-2026-59640 in Bouncy Castle for Java

Sumário

de MITRE • 03/08/2026

In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsável: Bcorg
• Reservar: 06/07/2026
• Divulgação: 03/08/2026
• Moderação: aceite
• Entrada: VDB-385426
• CPE: pronto
• CWE: CWE-358 (confirmado)
• CVSS: 7.3 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: baixo
• Sector: Telecommunication, Education, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-59640
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59640
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-59640/