Unauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook (SUSE Rancher)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.39 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- suse
- NVD status
- Undergoing Analysis
Description
A Rancher FleetWorkspace admission path allowed side effects to occur in the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to the in-cluster rancher-webhook service could submit a crafted admission payload and cause workspace-related Kubernetes objects to be created with attacker-chosen identity data.
Weaknesses (CWE)
- CWE-306 — Missing Authentication for Critical Functionality
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | HIGH 7.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N | suse |
| CVSS 4.0 | HIGH 7.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/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 | NVD · meissner@suse.de (Secondary) |
European references
- ENISA EUVD · EUVD-2026-40335
- GCVE · GCVE-0-2026-44949
Affected products
| Product | Versions |
|---|---|
| SUSE · Rancher | affected 0.7.0 < 0.7.10 ; affected 0.8.0 < 0.8.7 ; affected 0.9.0 < 0.9.6 ; affected 0.10.0 < 0.10.7 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |