Juju is an open source application orchestration engine that enables any application operation on any infrastructure at any scale through special operators called ‘charms’. From versions 2.9 to before 2.9.56 and 3.6 to before 3.6.19, it is possible that a compromised workload machine under a Juju controller can read any log file for any entity in any model at any level. This issue has been patched in versions 2.9.56 and 3.6.19.
https://github.com/juju/juju/security/advisories/GHSA-j6f6-jp3p-53mw
https://github.com/juju/juju/commit/c91a1f4046956874ba77c8b398aecee3d61a2dc3
https://github.com/juju/juju/commit/22cdcf6b54c2f371822e1c203d4f341be6c9589e
Published: 2026-04-03
Updated: 2026-04-21
Base Score: 6.1
Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:N/A:N
Severity: Medium
Base Score: 4.9
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
Base Score: 6.9
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00011