OCTOBER 7, 2026
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Case File

CVE-2026-93539

MEDIUM · CVSS 5.4 EPSS 0.23% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-28 · Last synced 2026-10-07

CyberRota Analysis

AI-Generated

The vulnerability affects the Git webhook receiver in SUSE Rancher Fleet, allowing unauthenticated network access to alter the `spec.pollingInterval` field of GitRepo resources across all namespaces if the webhook secret is not configured. This can lead to unauthorized changes in GitRepo configurations, potentially impacting the integrity of deployments. Organizations using affected versions of SUSE Rancher Fleet should prioritize patching to mitigate the risk of unauthorized access and configuration changes.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-93539
Severity
MEDIUM
CVSS
5.4
EPSS
0.23%
Kubernetes

Original NVD Description

A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside the namespaces they are authorized for.  This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.

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