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Maven package

org.bouncycastle:bcprov-jdk18on

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

Open advisories

9 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.7MavenAmendedPublished

    Bouncy Castle: Lazy ASN.1 sequence forcing resets nesting-depth guard

    CVE-2026-13506 · GHSA-qp49-qgx5-5m26

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on < 1.85
    Fixed in
    1.85· Vendor fix available
    Issue
    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).

    Recommended action: Upgrade to 1.85 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  2. Critical, CVSS 9.3MavenAmendedPublished

    Bouncy Castle: Name Constraints bypass via trailing dot in rfc822Name and URI

    CVE-2026-8763 · GHSA-9pwp-9qqc-pr26

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on < 1.85
    Fixed in
    1.85· Vendor fix available
    Issue
    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).

    Recommended action: Upgrade to 1.85 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:osv.dev (1)github.com (2)Source checked Evidence →
  3. Medium, CVSS 5.5MavenAmendedPublished

    Bouncy Castle has an LDAP injection

    CVE-2026-0636 · GHSA-c3fc-8qff-9hwx

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on >= 1.74, < 1.80.2; >= 1.81, < 1.81.1; >= 1.82, < 1.84
    Fixed in
    1.81.11.841.80.2· Vendor fix available
    Issue
    Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcprov on all (prov modules). This vulnerability is associated with program files LDAPStoreHelper. Issue affecting: BC 1.74 to 1.80.1, BC 1.81, BC 1.82 to BC 1.83. Fixed versions: BC 1.80.2, BC 1.81.1, BC 1.84

    Recommended action: Upgrade to 1.84, 1.81.1 or 1.80.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.com (1)osv.dev (2)Source checked Evidence →
  4. High, CVSS 8.9MavenAmendedPublished

    Bouncy Castle Has Covert Timing Channel Vulnerability

    CVE-2026-5598 · GHSA-p93r-85wp-75v3

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on >= 1.82, < 1.84; >= 1.81, < 1.84; >= 1.71, < 1.80.2
    Fixed in
    1.841.80.2· Vendor fix available
    Issue
    Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue only affects users of the FrodoKEM algorithm involved in the decryption of encapsulations. This issue affects BC-JAVA: from 1.71 to 1.80.1, 1.81, 1.82 to 1.83. Fixed versions: 1.80.2, 1.81.1, 1.84

    Recommended action: Upgrade to 1.84 or 1.80.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.com (1)osv.dev (2)Source checked Evidence →
  5. Medium, CVSS 6.3MavenPublished

    Bouncy Castle for Java on All (API modules) allows Excessive Allocation

    CVE-2025-8885 · GHSA-67mf-3cr5-8w23

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on >= 1.0, < 1.78
    Fixed in
    1.78· Vendor fix available
    Issue
    A resource allocation vulnerability exists in Bouncy Castle for Java (by Legion of the Bouncy Castle Inc.) that affects all API modules. The vulnerability allows attackers to cause excessive memory allocation through unbounded resource consumption, potentially leading to denial of service. The issue is located in the ASN1ObjectIdentifier.java file in the core module. This issue affects Bouncy Castle for Java: from BC 1.0 through 1.77, from BC-FJA 1.0.0 through 2.0.0.

    Recommended action: Upgrade to 1.78 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  6. Medium, CVSS 6.9MavenPublished

    Bouncy Castle crafted signature and public key can be used to trigger an infinite loop

    CVE-2024-30172 · GHSA-m44j-cfrm-g8qc

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on >= 1.73, < 1.78
    Fixed in
    1.78· Vendor fix available
    Issue
    An issue was discovered in Bouncy Castle Java Cryptography APIs starting in 1.73 and before 1.78. An Ed25519 verification code infinite loop can occur via a crafted signature and public key.

    Recommended action: Upgrade to 1.78 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  7. Medium, CVSS 5.3MavenPublished

    Bouncy Castle certificate parsing issues cause high CPU usage during parameter evaluation.

    CVE-2024-29857 · GHSA-8xfc-gm6g-vgpv

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on < 1.78
    Fixed in
    1.78· Vendor fix available
    Issue
    An issue was discovered in ECCurve.java and ECCurve.cs in Bouncy Castle Java (BC Java) before 1.78, BC Java LTS before 2.73.6, BC-FJA before 1.0.2.5, and BC C .Net before 2.3.1. Importing an EC certificate with crafted F2m parameters can lead to excessive CPU consumption during the evaluation of the curve parameters.

    Recommended action: Upgrade to 1.78 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  8. Medium, CVSS 5.9MavenPublished

    Bouncy Castle affected by timing side-channel for RSA key exchange ("The Marvin Attack")

    CVE-2024-30171 · GHSA-v435-xc8x-wvr9

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on < 1.78
    Fixed in
    1.78· Vendor fix available
    Issue
    An issue was discovered in Bouncy Castle Java TLS API and JSSE Provider before 1.78. Timing-based leakage may occur in RSA based handshakes because of exception processing.

    Recommended action: Upgrade to 1.78 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →
  9. Medium, CVSS 5.9MavenPublished

    Bouncy Castle Java Cryptography API vulnerable to DNS poisoning

    CVE-2024-34447 · GHSA-4h8f-2wvx-gg5w

    Affected
    • Maven org.bouncycastle:bcprov-jdk18on >= 1.61, < 1.78
    Fixed in
    1.78· Vendor fix available
    Issue
    An issue was discovered in the Bouncy Castle Crypto Package For Java before BC TLS Java 1.0.19 (ships with BC Java 1.78, BC Java (LTS) 2.73.6) and before BC FIPS TLS Java 1.0.19. When endpoint identification is enabled in the BCJSSE and an SSL socket is created without an explicit hostname (as happens with HttpsURLConnection), hostname verification could be performed against a DNS-resolved IP address in some situations, opening up a possibility of DNS poisoning.

    Recommended action: Upgrade to 1.78 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →