CVE-2026-41326: Kata Container has CopyFile Policy Subversion via Symlinks

May 4, 2026 (updated May 8, 2026)

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.

References

github.com/advisories/GHSA-q49m-57vm-c8cc
github.com/kata-containers/kata-containers/commit/1b9e49eb2763aa6ea6a99b276d3ff5e2c7f658f2
github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc
nvd.nist.gov/vuln/detail/CVE-2026-41326

Code Behaviors & Features

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