CVE-2026-13586 PKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS)

In Bouncy Castle for Java before 1.85, PKCS12 MAC and bag-decryption KDF iteration-count bound DoS. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS BC-FJA before bc-fips 1.0.2.7 1.0.X series, 2.0.2 2.0.X series and 2.1.3 2.1.X series...

DEBIAN-CVE-2026-59638

In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS BC-FJA before bctls-fips 1.0.24 1.0.X series, 2.0.24 2.0.X series and 2.1.24...

CVE-2026-59639

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...

CVE-2026-15055

CVE-2026-15055 affects Bouncy Castle for Java (before 1.85), LTS (before 2.73.12), and BC-FJA (before bcpkix-fips 1.0.12 / 2.0.12 / 2.1.12). The PKCS#8 / PBES2 decryptors honour an unbounded KDF cost parameter from the input, enabling a denial-of-service attack by supplying a key with an excessiv...

PT-2026-67059

In Bouncy Castle for Java before 1.85, PKCS8 / PBES2 decryptors honour unbounded KDF cost from input. 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...

Yubico Security Keys with a Crypto Flaw

Wow, is this an embarrassing bug: Yubico is recalling a line of security keys used by the U.S. government due to a firmware flaw. The company issued a security advisory today that warned of an issue in YubiKey FIPS Series devices with firmware versions 4.4.2 and 4.4.4 that reduced the randomness ...

Security advisory YSA-2019-02 | Yubico

Who should read this advisory? Customers, IT Managers, or FIPS Crypto Officers who use or manage YubiKey FIPS Series devices. An issue exists in YubiKey FIPS Series devices, versions 4.4.2 and 4.4.4 please note, there is no released firmware version 4.4.3. , where the first set of random values...