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.

Score
CVSS 4.0 2.1 Low
Status
Deferred - security@ubuntu.com
Published
2026-01-28
Last modified
2026-01-28
Weaknesses
CWE-347, CWE-672

Affected products

References

 
 
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