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CVE-2026-41326

Kata Containers: CopyFile Policy Subversion via Symlinks

Published: Apr 24, 2026Updated: Aug 24, 2026 Sources: CVE List NVDCWE-61
8.2HIGH
NVD MITRE
EPSS Score
0.3%
Top 72.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-61CWE-1220

Affected Products

katacontainers
oss-projectaka kata containers, kata-containers
confidential containersOn-prem
Cloud & SaaS / container-orchestration
kata containersOn-prem
Cloud & SaaS / container-orchestration
kata-containers
oss-project
kata-containersOn-prem
Cloud & SaaS / container-orchestration

Exploitability

Official Patch Available
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References

https://github.com/kata-containers/kata-containers/commit/1b9e49eb2763aa6ea6a99b276d3ff5e2c7f658f2
github.com
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-q49m-57vm-c8cc
github.com
http://www.openwall.com/lists/oss-security/2026/05/13/2
openwall.com
and 4 more references View all →

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