CVE-2026-104615: SUSE Rancher · Authentication Bypass by Spoofing
Affects SUSE RancherSource CVE Database V5
Not known to be exploited · CVSS 7.9 High · fixed in 0.16.3 : patch SUSE Rancher soon.
Data as of 30 Oct 2026, 16:18 UTC
Thin evidence
One scorer or none| CNA (suse) | CVSS 3.1 | 7.9 |
|---|
- Patch
- Available – fixed in 0.16.3, 0.15.17, 0.14.12 +1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Rancher and Fleett to 0.16.3, 0.15.17, 0.14.12 or 0.13.17.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| RancherFleett | Affected
| Fixed in
|
GitHubFleettpkg:github/FleettOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Fixed versions are available: 0.16.3, 0.15.17, 0.14.12, and 0.13.17. Users should upgrade to these versions or later to remediate the vulnerability. No information indicates alternative mitigations or that no action is required.
Description
CVE-2026-104615 is an authentication bypass vulnerability in SUSE Rancher Fleet's cluster registration flow affecting multiple versions before fixed releases. The flaw allows a registration request to claim a cluster identity without proper binding to the registration token, enabling association with a different managed cluster's identity. This could lead to unauthorized actions on clusters.