CVE-2026-93538
Suse Rancher Fleet: authorisation bypass
- Risk score
- 44/100
- CVSS
- 7.1 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 28 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster…
- Affected
- Suse Rancher Fleet before 0.16.1, 0.15, 0.15.6, 0.14, 0.14.10, 0.13, 0.13.15, 0.12
- Fix
- Upgrade Suse Rancher Fleet to 0.16.1, 0.15, 0.15.6, 0.14, 0.14.10, 0.13, 0.13.15 or 0.12 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.1 high
References
Original description
A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster object. Because Fleet resolves GitRepo and Bundle targets from those cluster labels, a party able to register a cluster into a Fleet workspace namespace shared with other tenants could cause its own cluster to satisfy targeting rules that administrators intended for a different cluster. This affects SUSE Rancher Fleet 0.16 before 0.16.1, 0.15 before 0.15.6, 0.14 before 0.14.10, 0.13 before 0.13.15, 0.12 before 0.12.19 and older versions.
Last activity 28 Sep 2026. Patch Forecast updates every hour.