GHSA-p93r-85wp-75v3

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    GHSA-p93r-85wp-75v3

    Published: 17 Apr 2026Last Modified: 4 Nov 2026
    Aliases:
    CVE-2026-5598

    Summary: Bouncy Castle Has Covert Timing Channel Vulnerability

    Details: 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

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-5598, https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87, https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5, https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json, https://github.com/bcgit/bc-java/wiki/CVE-2026-5598, https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598, https://github.com/bcgit/bc-java, https://bugzilla.redhat.com/show_bug.cgi?id=2458635, https://access.redhat.com/security/cve/CVE-2026-5598, https://access.redhat.com/errata/RHSA-2026:53806, https://access.redhat.com/errata/RHSA-2026:53646, https://access.redhat.com/errata/RHSA-2026:53645, https://access.redhat.com/errata/RHSA-2026:53644, https://access.redhat.com/errata/RHSA-2026:18059, https://access.redhat.com/errata/RHSA-2026:18055, https://access.redhat.com/errata/RHSA-2026:18054, https://access.redhat.com/errata/RHSA-2026:12269, https://access.redhat.com/errata/RHSA-2026:12267

    Affected packages

    Package

    Name: org.bouncycastle:bcprov-jdk15to18

    Purl: pkg:maven/org.bouncycastle/bcprov-jdk15to18

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.71
    Fixed -1.80.2

    Affected versions

    1.71

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-p93r-85wp-75v3 | CVE-DB