CVE-2026-93538High· 7.1▾ TwilightA 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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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.
Fleet >= 0.16.0 < 0.16.1Fleet >= 0.15.0 < 0.15.6Fleet >= 0.14.0 < 0.14.10Fleet >= 0.13.0 < 0.13.15Fleet >= 0.12.0 < 0.12.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-93539Medium· 5.4Unauthenticated GitRepo Spec Mutation via Fleet Git Webhook Receiver
CVE-2026-93540Medium· 6.5Fleet applies namespace labels and annotations without the bundle's service account privileges
CVE-2026-93537Medium· 6.5A user who can supply bundle content to a repository referenced by a GitRepo resource, for example through Git push access, or through permission to create or modify a GitRepo, can cause SUSE Rancher Fleet to read files from the filesyst…
CVE-2026-101047Medium· 5.3Fleet before 4.87.0 does not protect the two endpoints that serve in-house iOS application packages and manifests (enterprise tier only) with the intended random, time-limited URL token
CVE-2026-101045High· 8.0Fleet-maintained app install and uninstall scripts for macOS are generated from Homebrew cask metadata
CVE-2026-101046Low· 3.1Fleet before 4.89.0 contains an SQL injection vulnerability in the activity list endpoints (GET /api/v1/fleet/activities and GET /api/v1/fleet/hosts/{id}/activities)