What’s Vulnerable › Vulnerabilities

CVE-2023-32186

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-19 · updated 2026-06-17
• Weakness: CWE-770

Description

A Allocation of Resources Without Limits or Throttling vulnerability in SUSE RKE2 allows attackers with access to K3s servers apiserver/supervisor port (TCP 6443) cause denial of service. This issue affects RKE2: from 1.24.0 before 1.24.17+rke2r1, from v1.25.0 before v1.25.13+rke2r1, from v1.26.0 before v1.26.8+rke2r1, from v1.27.0 before v1.27.5+rke2r1, from v1.28.0 before v1.28.1+rke2r1.

Affected products

• SUSE RKE2: from 1.24.0\+rke2r1 before 1.24.17\+rke2r1; from 1.25.0\+rke2r1 before 1.25.13\+rke2r1; from 1.26.0\+rke2r1 before 1.26.8\+rke2r1; from 1.27.1\+rke2r1 before 1.27.5\+rke2r1; 1.28.1+rke2r1-rc1, 1.28.1+rke2r1-rc2 — fixed in 1.24.17\+rke2r1, 1.25.13\+rke2r1, 1.26.8\+rke2r1, 1.27.5\+rke2r1

How to fix

Upgrade to a fixed version: SUSE RKE2 1.24.17\+rke2r1, 1.25.13\+rke2r1, 1.26.8\+rke2r1, 1.27.5\+rke2r1. Check the vendor advisory for mitigations.

References

• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-32186
• https://github.com/rancher/rke2/security/advisories/GHSA-p45j-vfv5-wprq
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-32186
• https://github.com/rancher/rke2/security/advisories/GHSA-p45j-vfv5-wprq

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