CVE-2026-12817 OpenPGP AEAD decryption skips final tag on chunk-aligned data

In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. 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...

CVE-2026-12817

CVE-2026-12817 affects Bouncy Castle for Java prior to 1.85, including Java LTS builds before 2.73.12 and BC-FJA before bcpg-fips 1.0.13 (1.0.x), 2.0.13 (2.0.x), and 2.1.13 (2.1.x). The flaw: OpenPGP AEAD decryption skips the final tag on chunk-aligned data, as described in multiple sources. This...