CVE-2026-1237
LOW EPSS 3.2%
Published Jan 28, 20265mo ago · Modified Jun 17, 20262w ago
2.1 CVSS 4.0
Published Jan 28, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago
Description
Vulnerable cross-model authorization in juju. If a charm's cross-model permissions are revoked or expire, a malicious user who is able to update database records can mint an invalid macaroon that is incorrectly validated by the juju controller, enabling a charm to maintain otherwise revoked or expired permissions. This allows a charm to continue relating to another charm in a cross-model relation, and use their workload without their permission. No fix is available as of the time of writing.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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 Adjacent
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
3.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-347
CWE-672
References 1
- github.com https://github.com/juju/juju/security/advisories/GHSA-j477-6vpg-6c8x
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.