Authorization Flaw in Canonical Juju 4.0 - 4.0.15
CVE-2026-93336

7.1HIGH

Key Information:

Vendor

Canonical

Status
Juju
Vendor
CVE Published:
22 October 2026

What is CVE-2026-93336?

An authorization flaw within Canonical Juju versions 4.0 through 4.0.15 permits a controller-authenticated user or unit agent to access any charm resource across any model. By sending a specially crafted request that specifies an arbitrary unit, attackers could potentially retrieve sensitive data, including container-registry credentials, without appropriate permissions.

Affected Version(s)

Juju Linux 4.0 < 4.0.16

References

https://github.com/juju/juju/security/advisories/GHSA-fp7...
vendor-advisory
https://github.com/juju/juju/pull/23360
patch

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eurico Nicacio
.