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    CVE-2026-27099

    Jenkins 2.483 through 2.550 (both inclusive), LTS 2.492.1 through 2.541.1 (both inclusive) does not escape the user-provided description of the "Mark temporarily offline" offline cause, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Agent/Configure or Agent/Disconnect permission.

    Published:Feb 18, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 18, 2026
    EPSS Score:0.00051
    CVSS Score:8

    Affected Products

    Vendor
    Jenkins
    Product
    Jenkins
    Vendor
    Jenkins Project
    Product
    Jenkins

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-70428 (CVSS 4.3) — Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal …
    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