CVE-2026-41326
CWE-61Published: April 24, 2026· Updated: Apr 27, 2026
Official 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.
Technical Analysis
CVE-2026-41326 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (2)
Quick Facts
Related CVEs (CWE-61)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-41326 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts