CVE-2026-93336 Canonical Juju - Broken Access Control

Canonical Juju 4.0 through 4.0.15 contains a broken access control caused by missing authorization in the unit resources download route, letting controller-authenticated principals read any application's charm resource including container-registry credentials via crafted requests.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
22 October 2026
Updated
23 October 2026
Weakness
CWE-862

Vendor fix

Update to a version later than 4.0.15 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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