Security Bulletin: Bouncy Castle(bcprov and bcpg) security vulnerability in IBM FileNet Content Manager(FNCM) reported for FileNet Deployment Manager(FDM)

Summary IBM FileNet Content ManagerFNCM 5.7.0-IF6 addresses multiple Bouncy Castle CVEs reported for FileNet Deployment ManagerFDM Vulnerability Details CVEID:CVE-2026-12817 DESCRIPTION: In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This iss...

CVE-2026-12817

A flaw was found in Bouncy Castle for Java. This vulnerability affects the OpenPGP Authenticated Encryption with Associated Data AEAD decryption process. Specifically, the system fails to verify the final authentication tag when processing data that is aligned in chunks. This oversight could allo...

Improper Verification Of Cryptographic Signature

Bouncy Castle is vulnerable to Improper Verification of Cryptographic Signature. The vulnerability is due to OpenPGP AEAD decryption failing to verify the final authentication tag for chunk-aligned data, which allows an attacker to modify encrypted data without detection and potentially bypass...

UBUNTU-CVE-2026-12817

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

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

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 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: Improper Validation of Integrity Check Value

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...