CVE-2026-93538Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet
Updated under an hour ago ()
Does this affect you?
It affects SUSE Rancher and 1 other product. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.17%, higher than 6% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-290, CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.17% (percentile 6)
- Assigned by
- suse
- NVD analysis
- Analyzed
- Record last updated
- Sep 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
SUSE Rancher suse:rancher (from the name) | from 0.16.0 before 0.16.1; from 0.15.0 before 0.15.6; from 0.14.0 before 0.14.10; from 0.13.0 before 0.13.15; from 0.12.0 before 0.12.19 | CNA record |
suse rancher_fleet suse:rancher_fleet | from 0.12.0 before 0.12.19; from 0.13.0 before 0.13.15; from 0.14.0 before 0.14.10; from 0.15.0 before 0.15.6; from 0.16.0 before 0.16.1 | NVD |
References
- https://github.com/rancher/fleet/security/advisories/GHSA-h9p5-fp5h-qpqrvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.