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    CVE-2020-2101

    Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.

    Published:Jan 29, 2020
    Last Modified:Nov 21, 2024
    EPS:Jan 29, 2020
    EPSS Score:0.02369
    CVSS Score:5.3

    Affected Products

    Vendor
    Jenkins
    Product
    Jenkins
    Vendor
    Redhat
    Product
    Openshift

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering
    CAPEC-462 Cross-Domain Search Timing

    Related CVEs

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    CVE-2026-70427 (CVSS 4.3) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empt…
    CVE-2026-53442 (CVSS 5.3) — Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST config.xml submissions b…
    CVE-2026-53441 (CVSS 5.4) — Jenkins 2.483 through 2.567 (both inclusive), LTS 2.492.1 through 2.555.2 (both inclusive) does not escape the…
    CVE-2026-53440 (CVSS 4.3) — Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the "from" parameter in the "Delegate …
    CVE-2026-53439 (CVSS 4.3) — Missing permission checks in Jenkins 2.567 and earlier, LTS 2.555.2 and earlier allow attackers with Overall/R…
    CVE-2026-53438 (CVSS 4.3) — A missing permission check in Jenkins 2.567 and earlier, LTS 2.555.2 and earlier allows attackers with Item/Ca…
    CVE-2026-53437 (CVSS 4.3) — Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is le…

    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