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    CVE-2026-3236

    In affected versions of Octopus Server it was possible to create a new API key from an existing access token resulting in the new API key having a lifetime exceeding the original API key used to mint the access token.

    Published:Mar 5, 2026
    Last Modified:Apr 16, 2026
    EPS:Mar 5, 2026
    EPSS Score:0.00036
    CVSS Score:4.3

    Affected Products

    Vendor
    Octopus
    Product
    Octopus Server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-8296 (CVSS 5.6) — In affected versions of Octopus Server with certain access levels it was possible to embed a Cross-Site Script…
    CVE-2026-4881 (CVSS 6) — In affected versions of Octopus Server, permissions were not checked correctly resulting in any authenticated …
    CVE-2026-3237 (CVSS 2.3) — In affected versions of Octopus Server it was possible for a low privileged user to manipulate an API request …
    CVE-2026-0704 (CVSS 5.9) — In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host usi…
    CVE-2025-0539 (CVSS 5.9) — In affected Microsoft Windows versions of Octopus Deploy, the server can be coerced into sending server-side r…
    CVE-2025-0588 (CVSS 5.9) — In affected versions of Octopus Server it was possible for a user with sufficient access to set custom headers…
    CVE-2025-0513 (CVSS 1.8) — In affected versions of Octopus Server error messages were handled unsafely on the error page. If an adversary…
    CVE-2025-0526 (CVSS 2.3) — In affected versions of Octopus Deploy it was possible to upload files to unexpected locations on the host usi…

    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