CVE-2026-59639

脆弱性の種類

In Bouncy Castle for Java before 1.85, CMS verifySignatures returns true for SignedData with zero signers. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).

影響を受ける製品

• bouncycastle bc-java
• bouncycastle bcpkix-fips
• bouncycastle bouncy_castle_for_java_lts

参考情報

• https://github.com/bcgit/bc-java/commit/99ddc6dcc6782e6a76b0dd587c77e62eb7096ad0
• https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059639