CVE-2026-104615 (GCVE-0-2026-104615)
Vulnerability from cvelistv5 – Published: 2026-10-30 15:49 – Updated: 2026-11-06 16:23
VLAI
EPSS
VEX
Title
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
Summary
A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token.
Severity
7.9 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 16:23 UTC
CWE
- CWE-290 - Authentication bypass by spoofing
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.3
(semver)
Affected: 0.15.0. , < 0.15.17 (semver) Affected: 0.14.0 , < 0.14.12 (semver) Affected: 0.13 , < 0.13.17 (semver) Affected: 0 , ≤ 0.12 (semver) cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* |
Date Public
2026-10-30 15:44
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Sightings
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.