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    CVE-2026-1237

    Vulnerable cross-model authorization in juju. If a charm's cross-model permissions are revoked or expire, a malicious user who is able to update database records can mint an invalid macaroon that is incorrectly validated by the juju controller, enabling a charm to maintain otherwise revoked or expired permissions. This allows a charm to continue relating to another charm in a cross-model relation, and use their workload without their permission. No fix is available as of the time of writing.

    Published:Jan 28, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 28, 2026
    EPSS Score:0.00005
    CVSS Score:2.1

    Affected Products

    Vendor
    Canonical
    Product
    Juju

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Related CVEs

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    CVE-2025-68152 (CVSS 6.9) — Juju is an open source application orchestration engine that enables any application operation on any infrastr…
    CVE-2026-4370 (CVSS 10) — A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where…
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    CVE-2026-32693 (CVSS 8.8) — In Juju from version 3.0.0 through 3.6.18, the authorization of the "secret-set" tool is not performed correct…
    CVE-2026-32692 (CVSS 7.6) — An authorization bypass vulnerability in the Vault secrets back-end implementation of Juju versions 3.1.6 thro…
    CVE-2026-32691 (CVSS 5.3) — A race condition in the secrets management subsystem of Juju versions 3.0.0 through 3.6.18 allows an authentic…
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    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