CVE-2026-41326
EUVD-2026-2561124.04.2026, 19:17
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.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| katacontainers | confidential_containers | 0.9.0 ≤ 𝑥 < 0.20.0 |
| katacontainers | kata_containers | 3.4.0 ≤ 𝑥 < 3.29.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Container Platform 4.19 | 4.19.9.6.202606100451-0 ≤ 𝑥 < * | ADP |
Common Weakness Enumeration
- CWE-61 - UNIX Symbolic Link (Symlink) FollowingThe software, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the software to operate on unauthorized files.
- CWE-1220 - Insufficient Granularity of Access ControlThe product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.
References