EUVD-2026-21366
GHSA-7m55-2hr4-pw78
6.0
CVSS 4.0
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CVSS Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/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
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
X
Lifecycle Timeline
4
Analysis Generated
Apr 10, 2026 - 12:45 vuln.today
EUVD ID Assigned
Apr 10, 2026 - 12:45 euvd
EUVD-2026-21366
Patch Released
Apr 10, 2026 - 12:45 nvd
Patch available
CVE Published
Apr 10, 2026 - 12:10 nvd
MEDIUM 6.0
Description
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.
Analysis
Improper synchronization of the userTokens map in Canonical Juju API server (versions 4.0.5, 3.6.20, and 2.9.56) enables authenticated users to trigger denial of service or reuse single-use discharge tokens due to a race condition. The vulnerability requires low privilege authentication and partial attacker timing control but allows complete availability impact to the server. …
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Priority Score
30
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0
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External POC / Exploit Code
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