CVE-2026-41050

Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering

CVSS 9.9 CRITICALEPSS 0.4%CWE-863

Vexday Risk Score

28Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

13 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Fleet's Helm deployer did not fully apply ServiceAccount impersonation in two code paths, allowing a tenant with git push access to a Fleet-monitored repository to read secrets from any namespace on every downstream cluster targeted by their `GitRepo`.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

SUSE · Rancher

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References

https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41050 https://github.com/advisories/GHSA-765j-qfrp-hm3j