CVE-2026-59648

Name of the Vulnerable Software and Affected Versions Bouncy Castle for Java versions prior to 1.85 Bouncy Castle for Java LTS versions prior to 2.73.12 Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips versions prior to 1.0.13 Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips versions prior to 2.0.13 Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips versions prior to 2.1.13

Description OpenPGP Argon2 S2K (String-to-Key) honors attacker-chosen memory and passes, which could allow an attacker to influence the resource consumption during the key derivation process.

Recommendations Update Bouncy Castle for Java to version 1.85 or later. Update Bouncy Castle for Java LTS to version 2.73.12 or later. Update Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips to version 1.0.13 or later for the 1.0.X series. Update Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips to version 2.0.13 or later for the 2.0.X series. Update Bouncy Castle for Java FIPS (BC-FJA) bcpg-fips to version 2.1.13 or later for the 2.1.X series.