Product by Open Source

    Bouncy Castle Java

    13 known vulnerabilities in Bouncy Castle Java (Open Source), 0 of them actively exploited (CISA KEV).

    Key figures

    13

    Vulnerabilities

    0

    Actively exploited (KEV)

    0

    Used by ransomware

    1

    Critical

    Vulnerabilities

    Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

    Vulnerabilities in Bouncy Castle Java (Open Source)
    CriticalCVE-2026-71885

    MLS X.509 credential not bound to the LeafNode signature key

    also in 2 other products

    —
    HighCVE-2026-71890

    MLS external commit can remove an arbitrary group member

    also in 2 other products

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    HighCVE-2026-71889

    PKIXCertPathReviewer does not apply X.509 name constraints to the target certificate

    also in 4 other products

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    HighCVE-2026-71888

    CMS AuthenticatedData exposes attacker-inserted authAttrs when digestAlgorithm is absent

    also in 4 other products

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    HighCVE-2026-71883

    Native AES packet cipher returns the raw AES key on an alias

    also in 2 other products

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    HighCVE-2026-71886

    OpenPGP certification accepted from a subkey without certification authority

    also in 2 other products

    —
    HighCVE-2026-85515

    OpenPGP message truncation not reported, bypassing the SEIPDv1 integrity check

    also in 4 other products

    —
    HighCVE-2026-71887

    OpenPGP data signature accepted from a signing subkey without cross-certification

    also in 2 other products

    —
    MediumCVE-2025-8916

    Possible DOS in processing large name constraint structures in PKIXCertPathReveiwer

    also in 11 other products

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    HighCVE-2026-71891

    BLS12-381 key validation accepts a public key built on a foreign curve

    also in 2 other products

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    MediumCVE-2026-71892

    CMS key-transport recipient key-size validation never runs for RFC 9709 HKDF-derived keys

    also in 3 other products

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    MediumCVE-2026-18040

    Legion of the Bouncy Castle BC-JAVA: Observable Timing Discrepancy

    also in 2 other products

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    MediumCVE-2026-97873

    Legacy PBES1 and PKCS#12 PBE iteration count honoured unbounded in the raw JCA provider

    also in 3 other products

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