{"id":"CVE-2026-1237","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-1237","generatedAt":"2026-10-27T23:08:10.175Z","title":"Vulnerable cross-model authorization in juju.","description":"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":"2026-01-28T15:16:16.000Z","lastModified":"2026-06-17T10:15:23.000Z","status":"Deferred","sourceIdentifier":"security@ubuntu.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-347","CWE-672"],"affected":[],"epss":{"score":0.00142,"percentile":0.03486,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.14%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/juju/juju/security/advisories/GHSA-j477-6vpg-6c8x","source":"security@ubuntu.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-1237","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}