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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History
Mon, 27 Apr 2026 20:30:00 +0000
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Mon, 27 Apr 2026 14:15:00 +0000
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Fri, 24 Apr 2026 19:15:00 +0000
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| 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. | |
| Title | Kata Containers: CopyFile Policy Subversion via Symlinks | |
| Weaknesses | CWE-61 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-24T18:46:21.993Z
Updated: 2026-04-27T13:43:53.436Z
Reserved: 2026-04-20T14:01:46.672Z
Link: CVE-2026-41326
Updated: 2026-04-27T13:43:41.648Z
Status : Awaiting Analysis
Published: 2026-04-24T19:17:12.253
Modified: 2026-04-27T18:57:20.293
Link: CVE-2026-41326
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