Priority MEDIUM 56
Legion of the Bouncy Castle Legion of the Bouncy Castle Java Cryptography APIs 1.58 up to but not including 1.60 contains a CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vuln…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.04767 · Published 2018-07-09 · Partial fix · 1.60 CWE-470
Priority MEDIUM 54
BouncyCastle TLS prior to version 1.0.3, when configured to use the JCE (Java Cryptography Extension) for cryptographic functions, provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is…
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.24282 · Published 2017-12-13 · Partial fix · 1.0.3 CWE-203
Priority MEDIUM 48
In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value.
CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00337 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 CWE-20
Priority MEDIUM 48
In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in.
CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00345 · Published 2026-08-03 · Fixed in 1.85, 2.73.12 +3 CWE-297
Priority MEDIUM 48
In Bouncy Castle for Java before 1.85, Stapled OCSP response accepted without binding to the checked certificate.
CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.00364 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +2 CWE-295
Priority MEDIUM 48
In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI.
CVSS 4.0CRITICAL 9.3· Network · No auth · No interaction · EPSS 0.0043 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +3 CWE-295
Priority MEDIUM 48
Covert timing channel vulnerability in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.9· Network · No auth · No interaction · EPSS 0.00899 · Published 2026-04-15 · Partial fix · 1.80.2, 1.81.1 +1 CWE-385
Priority MEDIUM 47
Improper input validation in DHAgreement.CalculateAgreement (MTI/A0 two-pass Diffie-Hellman) in Legion of the Bouncy Castle Inc.
CVSS 4.0CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00326 · Published 2026-10-02 · Fixed in 2.7.0 CWE-20
Priority MEDIUM 47
The Legion of the Bouncy Castle Java Cryptography API before release 1.38, as used in Crypto Provider Package before 1.36, has unknown impact and remote attack vectors related to "a Bleichenbacher vulnerability in simple…
CVSS 2.0HIGH 10.0· Network · No auth · Interaction — · EPSS 0.02413 · Published 2009-03-30 · Fixed in 1.38 CWE-203
Priority MEDIUM 45
In Bouncy Castle for Java before 1.85, HSS public-key level count unbounded, enabling huge allocation on verify.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00616 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +2 CWE-789
Priority MEDIUM 45
Allocation of resources without limits or throttling, Uncontrolled Resource Consumption vulnerability in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00787 · Published 2026-04-15 · Partial fix · 1.80.2, 1.81.1 +1 CWE-400
Priority MEDIUM 45
An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66.
CVSS 3.1HIGH 8.1· Network · No auth · No interaction · EPSS 0.07225 · Published 2020-12-18 · Partial fix · 1.67 CWE-670
Priority MEDIUM 44
Memory allocation with excessive size value in the HSS/LMS signature code (HssPublicKeyParameters, HssSignature) in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00522 · Published 2026-10-02 · Fixed in 2.7.0 CWE-789
Priority MEDIUM 44
Uncontrolled recursion in the ASN.1 parser (Asn1InputStream, Asn1StreamParser) in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00359 · Published 2026-10-02 · Fixed in 2.7.0 CWE-674
Priority MEDIUM 44
Memory allocation with excessive size value in the OpenPGP signature and user attribute subpacket parsers (SignatureSubpacketsParser.ReadPacket, UserAttributeSubpacketsParser.ReadPacket) in Legion of the Bouncy Castle In…
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00426 · Published 2026-10-02 · Fixed in 2.7.0 CWE-789
Priority MEDIUM 44
Allocation of resources without limits or throttling in the CMP/CRMF password-based MAC verifier (PKMacBuilder) in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00363 · Published 2026-10-02 · Fixed in 2.7.0 CWE-770
Priority MEDIUM 44
Memory allocation with excessive size value in the DTLS handshake reassembly (DtlsReliableHandshake, DtlsReassembler) in Legion of the Bouncy Castle Inc.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00432 · Published 2026-10-02 · Fixed in 2.7.0 CWE-789
Priority MEDIUM 44
In Bouncy Castle for Java before 1.86, the MLS implementation (org.bouncycastle.mls) holds RFC 9420's uint32 leaf_index in a signed int, so a wire value with the top bit set decodes to a negative number.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.0042 · Published 2026-10-02 · Fixed in 1.86 CWE-195
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, OpenPGP user-attribute subpacket length bounded only by JVM max memory.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00493 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +3 CWE-789
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00465 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +3 CWE-789
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, OER parser recurses without depth limit on self-referential IEEE 1609.2 schema.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00408 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +2 CWE-674
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00493 · Published 2026-08-03 · Fixed in 1.85 CWE-834
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00347 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +3 CWE-203
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00493 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +3 CWE-407
Priority MEDIUM 44
In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read.
CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00493 · Published 2026-08-03 · Partial fix · 1.85, 2.73.12 +4 CWE-789
Load more