CVE-2026-5774
Published:April 10, 2026
Updated:April 20, 2026
Improper synchronization of the userTokens map in the API server in Canonical Juju 4.0.5, 3.6.20, and 2.9.56 may allow an authenticated user to possibly cause a denial of service on the server or possibly reuse a single-use discharge token.
Affected Packages
https://github.com/juju/juju.git (GITHUB):
Affected version(s) >=v2.9.45 <v2.9.57Fix Suggestion:
Update to version v2.9.57https://github.com/juju/juju.git (GITHUB):
Affected version(s) >=v3.1.6 <v3.6.21Fix Suggestion:
Update to version v3.6.21https://github.com/juju/juju.git (GITHUB):
Affected version(s) >=v4.0.0 <v4.0.6Fix Suggestion:
Update to version v4.0.6Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
EPSS
Base Score:
0.01
