Legion of the Bouncy Castle Inc. Vulnerabilities and Affected Products
Vulnerabilities associated with BC-LTS-JAVA.
Products
Clear product- BC-JAVA38 vulnerabilities
- BC-LTS-JAVA28 vulnerabilities
- BC-FJA27 vulnerabilities
- BC Java2 vulnerabilities
- BC-LTS2 vulnerabilities
- Bouncy Castle for Java FIPS2 vulnerabilities
- Bouncy Castle for Java LTS2 vulnerabilities
- BCPIX-LTS1 vulnerability
- BCPKIX FIPS1 vulnerability
- BCPKIX-FIPS1 vulnerability
- Bouncy Castle for Java1 vulnerability
- Bouncy Castle for Java - BC-FJA 2.1.01 vulnerability
| Vulnerability | Title and context | CVSS | EPSS | PoCs | Signals | STIX action |
|---|---|---|---|---|---|---|
CVE-2026-13586MEDIUM | PKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS)In Bouncy Castle for Java before 1.85, PKCS#12 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). CWE-770Aug 3, 2026 | CVSS5.3v4.0 | EPSS0.294% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-13506HIGH | Lazy ASN.1 sequence forcing resets nesting-depth guardIn 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). CWE-674Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-12860HIGH | RSA PKCS#1 verification skips last two hash bytes in NULL-omitted pathIn Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path. This issue also affects Bouncy Castle for Java LTS before 2.73.12. CWE-347Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.174% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-12817HIGH | OpenPGP AEAD decryption skips final tag on chunk-aligned dataIn 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). CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.157% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-12816HIGH | IESEngine stream-mode MAC forgery via length-dependent KDF splitIn Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split. This issue also affects Bouncy Castle for Java LTS before 2.73.12. CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.157% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-12803HIGH | KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery)In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce AEAD forgery). This issue also affects Bouncy Castle for Java LTS before 2.73.12. CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.174% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-12802HIGH | CMS AuthEnvelopedData fails to enforce tag-length on decryptionIn Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption. 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). CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.172% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-14682HIGH | Possible OOM from unbounded up-front allocation on a definite-length readIn Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length read. 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), and before bctls-fips 1.0.24. CWE-789Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-58059HIGH | Quadratic-time escaping when stringifying X.500 distinguished namesIn 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). CWE-407Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.329% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-58060HIGH | HSS public-key level count unbounded, enabling huge allocation on verifyIn Bouncy Castle for Java before 1.85, HSS public-key level count unbounded, enabling huge allocation on verify. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CWE-789Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.365% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-58061HIGH | CCM-family modes write plaintext to caller buffer before tag checkIn Bouncy Castle for Java before 1.85, CCM-family modes write plaintext to caller buffer before tag check. 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). CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.212% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-58062CRITICAL | Stapled OCSP response accepted without binding to the checked certificateIn 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 LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bc-fips 2.0.2 (2.0.X series) and 2.1.3 (2.1.X series). CWE-295Aug 3, 2026 | CVSS9.3v4.0 | EPSS0.203% | PoCs1 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-58063MEDIUM | BCFKS keystore load honours unbounded KDF cost from untrusted fileIn Bouncy Castle for Java before 1.85, BCFKS keystore load honours unbounded KDF cost from untrusted file. 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). CWE-770Aug 3, 2026 | CVSS5.3v4.0 | EPSS0.329% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59638CRITICAL | JSSE hostname verifier CN-fallback enabled by default despite documented opt-inIn 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 (2.1.X series). CWE-297Aug 3, 2026 | CVSS9.3v4.0 | EPSS0.276% | PoCs1 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59639HIGH | CMS verifySignatures returns true for SignedData with zero signersIn 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). CWE-347Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.174% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59640HIGH | OpenPGP CFB quick-check oracle active on symmetric/session-key pathsIn 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). CWE-203Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59641HIGH | S/MIME validator trusts signer-asserted signingTime for path validationIn Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0.7 (1.0.X series), 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series). CWE-345Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.174% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59642HIGH | CMS AuthenticatedData content not bound to MAC when authAttrs presentIn Bouncy Castle for Java before 1.85, CMS AuthenticatedData content not bound to MAC when authAttrs present. 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). CWE-354Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.157% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59645HIGH | OER parser recurses without depth limit on self-referential IEEE 1609.2 schemaIn 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). CWE-674Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59646HIGH | DTLS handshake reassembler allocates buffer from unchecked 24-bit lengthIn Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. 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 (2.1.X series). CWE-789Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.291% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59647MEDIUM | CRMF/CMP password-MAC honours unbounded iteration countIn Bouncy Castle for Java before 1.85, CRMF/CMP password-MAC honours unbounded iteration count. 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). CWE-770Aug 3, 2026 | CVSS6.9v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59648MEDIUM | OpenPGP Argon2 S2K honours attacker-chosen memory and passesIn Bouncy Castle for Java before 1.85, OpenPGP Argon2 S2K honours attacker-chosen memory and passes. 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). CWE-770Aug 3, 2026 | CVSS6.9v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59649HIGH | OpenPGP user-attribute subpacket length bounded only by JVM max memoryIn 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 series). CWE-789Aug 3, 2026 | CVSS8.7v4.0 | EPSS0.263% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59650CRITICAL | MTI/A0 DH agreement exponentiates unvalidated peer valueIn Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java LTS before 2.73.12. CWE-20Aug 3, 2026 | CVSS9.3v4.0 | EPSS0.263% | PoCs1 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |
CVE-2026-59651HIGH | BKS keystore accepts legacy version with 16-bit integrity MAC keyIn 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. CWE-326Aug 3, 2026 | CVSS7.1v4.0 | EPSS0.174% | PoCs0 | SignalsNot listed in CISA KEVNo known ransomware useNo Nuclei templates | STIX |