What is CVE-2026-32241?

CVE-2026-32241 is a high-severity vulnerability in Flannel-io Flannel, classified under Command Injection. CVSS score: 7.5/10. Published 2026-03-27.

How severe is CVE-2026-32241?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Flannel-io Flannel

CVE-2026-32241

Flannel is a network fabric for containers, designed for Kubernetes. The Flannel project includes an experimental Extension backend that allows users to easily prototype new backend types. In versions of Flannel prior to 0.28.2, this Exten…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (18.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Flannel-io Flannel — versions < 0.28.2

Weakness classification (CWE)

CWE-77 — Command Injection

References

https://github.com/flannel-io/flannel/security/advisories/GHSA-vchx-5pr6-ffx2 (x_refsource_CONFIRM)
https://github.com/flannel-io/flannel/releases/tag/v0.28.2 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-32241?: CVE-2026-32241 is a high-severity vulnerability in Flannel-io Flannel, classified under Command Injection. CVSS score: 7.5/10. Published 2026-03-27.
How severe is CVE-2026-32241?: High severity. CVSS v3 base score is 7.5 out of 10.