CVE-2026-1237 describes a cross-model authorization vulnerability in Juju, allowing a malicious user to forge an invalid macaroon and maintain revoked or expired charm permissions. This enables unauthorized cross-model relations and workload access. The vulnerability has a CVSS score of 2.1 (LOW), indicating an adjacent attack vector and high attack complexity, with potential for low impact on confidentiality, integrity, and availability. There is currently no fix available, and no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Canonical | Juju | 0CNA affecteddefault affected |
CVSS version used by this source: 4.0
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
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