Is CVE-2026-13218 in the CISA KEV catalog?

No. CVE-2026-13218 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-13218?

CVE-2026-13218 has a CVSS v3 base score of 4.2 (Moderate).

What is the EPSS score for CVE-2026-13218?

CVE-2026-13218 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-13218?

No published fix for CVE-2026-13218 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-13218

MEDIUM

4.2

CVSS v3

NVD

Description

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causing virt-handler to follow it and overwrite an arbitrary host file with JSON content and change its ownership.

CWE-61

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references2

Embed a live status badge for CVE-2026-13218

Markdown

[![CVE-2026-13218](https://tridentstack.com/cve/badge/CVE-2026-13218.svg)](https://tridentstack.com/cve/CVE-2026-13218)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-13218"><img src="https://tridentstack.com/cve/badge/CVE-2026-13218.svg" alt="CVE-2026-13218"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.