CVE-2026-41326
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.
Fraqueza
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.
Produtos afetados
- katacontainers confidential_containers
- katacontainers kata_containers
Referências
- https://github.com/kata-containers/kata-containers/commit/1b9e49eb2763aa6ea6a99b276d3ff5e2c7f658f2
- https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc
- http://www.openwall.com/lists/oss-security/2026/05/13/2
- https://access.redhat.com/errata/RHSA-2026:25200
- https://access.redhat.com/security/cve/CVE-2026-41326
- https://bugzilla.redhat.com/show_bug.cgi?id=2460859
Encontre a falha antes de um atacante.
Entre com o GitHub e rode sua primeira auditoria em menos de um minuto. O plano gratuito não exige cartão de crédito.