CVE-2026-41326

8.2 HIGH
Published: April 24, 2026 Modified: May 14, 2026
View on NVD

Description

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/05/13/2
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory Mailing List
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.2 / 10.0
EPSS (Exploit Probability)
0.3%
21th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

katacontainers