CVE-2026-93537: SUSE Rancher Fleet path traversal in Helm valuesFiles

CVE-2026-93537 · Severity: medium · CVSS 6.5 · Published 2026-09-28

SUSE Rancher Fleet, a deployment management tool for Kubernetes clusters, contains a vulnerability that allows users with repository write access to read arbitrary files from the system that processes deployments. An attacker can exploit this by crafting malicious Helm configuration files to disclose sensitive credentials, configuration data, and other secrets that should be restricted, potentially compromising the entire fleet infrastructure.

Technologies: Suse Rancher Fleet. Vendors: Suse.

Quick answers

Is CVE-2026-93537 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-93537 being exploited in the wild.
How severe is CVE-2026-93537?
Medium severity, with a CVSS score of 6.5, published 28 September 2026.
Which products and versions are affected?
Suse Rancher Fleet 0.16.0 before 0.16.2, 0.15.0 before 0.15.7, 0.14.0 before 0.14.11, 0.13.0 before 0.13.16, 0.12.0 before 0.12.20, and earlier unsupported versions.
Is there a fix for CVE-2026-93537?
A patch was published on 2026-09-28: Patches released: Fleet v0.16.2, v0.15.7, v0.14.11, v0.13.16, v0.12.20 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-93537 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-93537?
Check whether you run Suse Rancher Fleet at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability in Fleet's Helm valuesFiles handling fails to restrict file paths to the bundle directory, allowing an attacker with GitRepo write access or creation permissions to reference and read files outside the bundle root. The vulnerability requires the bundle to use Helm valuesFiles and affects environments that process untrusted bundle content. Exploitation is limited to files that parse as YAML or JSON but can expose Helm registry credentials and other sensitive materials, and is patched in versions 0.16.2, 0.15.7, 0.14.11, 0.13.16, and 0.12.20.

Affected products

  • SUSE Rancher Fleet 0.16.0 before 0.16.2, 0.15.0 before 0.15.7, 0.14.0 before 0.14.11, 0.13.0 before 0.13.16, 0.12.0 before 0.12.20, and earlier unsupported versions

Timeline

  • 2026-09-28: disclosed: CVE-2026-93537 / GHSA-wpfm-r97v-3j4h published
  • 2026-09-28: patched: Patches released: Fleet v0.16.2, v0.15.7, v0.14.11, v0.13.16, v0.12.20

References

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