CVE-2026-58059: Inefficient Algorithmic Complexity

In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names. 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...

CVE-2026-8763: Improper Certificate Validation

In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. 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...

Linux Distros Unpatched Vulnerability : CVE-2026-58062

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate. This issue also affects Bouncy Castle for Java...

CVE-2026-13506: Uncontrolled Recursion

In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. 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...

CVE-2026-59639: Improper Verification of Cryptographic Signature

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...

PT-2026-67011

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 Description The BKS/UBER keystore allocates memory based on untrusted lengths before performing an integrity check. This can lead to resource...

PT-2026-67017

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 Description An issue exists in the IESEngine where a MAC forgery is possible in stream-mode due to a length-dependent KDF split. KDF refers to a...

PT-2026-67234

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 bcmail-fips and bcjmail-fips versions prior to 1.0.7 Bouncy Castle for Java FIPS BC-FJA bcmail-fips and...

PT-2026-67238

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 bcutil-fips versions prior to 2.0.7 Bouncy Castle for Java FIPS BC-FJA bcutil-fips versions prior to 2.1.7...

PT-2026-67242

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 Boun...

PT-2026-67244

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 Description The BKS keystore accepts a legacy version that utilizes a 16-bit integrity MAC key. A Message Authentication Code MAC is a short pie...

CVE-2026-59640: Observable Discrepancy

In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths. 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-2026-59645: Uncontrolled Recursion

In Bouncy Castle for Java before 1.85, OER parser recurses without depth limit on self-referential IEEE 1609.2 schema. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS BC-FJA before bcutil-fips 2.0.7 2.0.X series and 2.1.7 2.1.X series...

CVE-2026-59649: Memory Allocation with Excessive Size Value

In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory. 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 serie...

CVE-2026-59651: Inadequate Encryption Strength

In Bouncy Castle for Java before 1.85, BKS keystore accepts legacy version with 16-bit integrity MAC key. This issue also affects Bouncy Castle for Java LTS before 2.73.12...

Linux Distros Unpatched Vulnerability : CVE-2026-59640

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths. This issue also affects Bouncy Castle for Java LTS...

Linux Distros Unpatched Vulnerability : CVE-2026-59651

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In Bouncy Castle for Java before 1.85, BKS keystore accepts legacy version with 16-bit integrity MAC key. This issue also affects Bouncy Castle for Java LTS...

PT-2026-67019

Name of the Vulnerable Software and Affected Versions Bouncy Castle for Java versions prior to 1.85 Description The MLS wire decoder allocates memory based on an opaque length declared by an attacker before performing a bounds check. This behavior can lead to excessive memory allocation...

PT-2026-67020

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 Description RSA PKCS1 verification skips the last two hash bytes when using the NULL-omitted path. Recommendations Update Bouncy Castle for Java...

PT-2026-67237

Name of the Vulnerable Software and Affected Versions Bouncy Castle for Java versions prior to 1.85 Description The MLS hash-ratchet mechanism accepts an arbitrary 32-bit generation counter provided by the sender. A hash-ratchet is a cryptographic process used to derive new keys for each message ...