BIT-jenkins-2026-84649

    Dashboard / Vulnerabilities / BIT-jenkins-2026-84649

    BIT-jenkins-2026-84649

    Published: 8 Sept 2026Last Modified: 10 Sept 2026

    Summary:

    Details: In Stapler 1839.ved17667b_a_eb_5 through 2107.v8dfcb_e8ed317 (both inclusive), except 2088.2093.vd7c3e58008a_6, included in Jenkins 2.447 through 2.579 (both inclusive), LTS 2.452.1 through 2.568.2 (both inclusive), an HTTP endpoint serving dynamically generated JavaScript resources embeds the user's cross-site request forgery (CSRF) token (crumb) as a string literal, allowing attackers with control over a page hosted on the same site as Jenkins to obtain a valid crumb for the targeted user's session and perform actions on their behalf.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-84649, https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3878

    Affected packages

    Package

    Name: jenkins

    Purl: pkg:bitnami/jenkins

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 2.447.0
    Fixed -2.568.3

    Affected versions

    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
    BIT-jenkins-2026-84649 | CVE-DB