Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | The CVSS v4.0 score of 6.9 reflects high confidentiality impact (VC:H) with a network attack vector but high privilege requirement (PR:H). The EPSS exploitation probability and KEV status are not provided in the input data. The attack complexity is low (AC:L) and requires no user interaction (UI:N), making exploitation straightforward once privilege is obtained. The real-world risk is moderate-to-high: an attacker must first compromise a workload machine (requiring separate initial access), but once that foothold exists, lateral movement to read privileged logs across the entire Juju deployment is trivial. The affected versions span two major release lines (2.9.x and 3.6.x), suggesting a systemic authorization bypass rather than a narrow edge case. Organizations with multi-tenant Juju deployments or sensitive operational logs face significant risk from insider threats or supply-chain compromises targeting workload machines. |
| Exploit ScenarioDerived | An attacker gains control of a Juju-managed workload machine through supply-chain compromise, misconfigured credentials, or lateral movement within the target infrastructure. Once on the machine, the attacker leverages the authorization bypass to query the Juju controller's log API without proper checks, reading sensitive logs from other models and entities-such as database credentials, API tokens, or operational secrets logged elsewhere in the deployment. This enables rapid escalation to sensitive systems or exfiltration of confidential data across the entire Juju management plane. |
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Alert meAnalysisAIv1 – Apr 03, 2026
Juju application orchestration engine versions 2.9 to 2.9.55 and 3.6 to 3.6.18 allow a compromised workload machine to read arbitrary log files for any entity across any model without proper authorization checks. This authentication bypass (CWE-863) affects high-privilege scenarios where an attacker already controls a machine within a Juju-managed infrastructure, enabling lateral information disclosure to extract sensitive operational logs. The vulnerability has been patched in Juju 2.9.56 and 3.6.19.
RemediationAI
Vendor-released patch: Juju 2.9.56 and Juju 3.6.19. Administrators should upgrade immediately to one of these patched versions. For organizations unable to upgrade immediately, the primary mitigation is to restrict physical or administrative access to workload machines managed by the Juju controller, as the vulnerability requires an attacker to already control a machine in the deployment. No workaround is available short of patching. Additional defense-in-depth measures include implementing network segmentation to restrict log access channels and auditing log access patterns to detect unauthorized queries. Refer to the GitHub security advisory (https://github.com/juju/juju/security/advisories/GHSA-j6f6-jp3p-53mw) for deployment-specific guidance.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 3 packages in go, euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Juju is an operator-based infrastructure automation platform that manages applications and their lifecycle across heterogeneous environments. The underlying issue stems from insufficient authorization enforcement in the log access control mechanism (CWE-863: Improper Authorization). The CVSS vector (PR:H) indicates this requires high-privilege context-specifically, an attacker must already have control over a workload machine managed by the Juju controller. The vulnerability allows privilege escalation within the Juju management plane: a compromised machine can bypass model isolation and read logs from entities it should not have access to. This affects the core multi-tenancy and isolation guarantees that Juju operators depend on.
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Severity by source
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
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
2DescriptionCVE.org
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.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Related Vulnerabilities in Juju Authorization Flaws
View all 2Juju before 1.25.12, 2.0.x before 2.0.4, and 2.1.x before 2.1.3 uses a UNIX domain socket without setting appropriate pe
In Juju versions prior to 3.6.8 and 2.9.52, any authenticated controller user was allowed to upload arbitrary agent bina
The /charms endpoint on a Juju controller lacked sufficient authorization checks, allowing any user with an account on t
JUJU_CONTEXT_ID is a predictable authentication secret. Rated high severity (CVSS 8.0), this vulnerability is low attack
The /log endpoint on a Juju controller lacked sufficient authorization checks, allowing unauthorized users to access deb
Unauthenticated remote database cluster compromise in Canonical Juju (versions 3.2.0-3.6.19 and 4.0-4.0.4) allows comple
An authorization bypass vulnerability in Canonical's Juju versions 3.0.0 through 3.6.18 allows authenticated users with
An issue was discovered in Juju that resulted in the leak of the sensitive context ID, which allows a local unprivileged
An authorization bypass vulnerability exists in the Vault secrets back-end implementation of Canonical's Juju orchestrat
Canonical Juju 4.0 through 4.0.15 leaves the model unit-resources download route without an authorization check, so any
A predictable secret identifier (XID) vulnerability in Juju versions 3.0.0 through 3.6.18 allows a malicious grantee to
Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Linux Enterprise Server 16.1 | Affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Affected |
| openSUSE Leap 15.5 | Affected |
| openSUSE Leap 15.6 | Affected |
EUVD-2025-209209
GHSA-j6f6-jp3p-53mw
NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB