CVE-2026-7574

Anthropic Claude Desktop Cowork VM image handling (confirmed across v1.1348.0 through v1.2278.0, including v1.1348.0, v1.1617.0, and v1.2278.0) validates only file presence and a version marker string before booting rootfs.img, but does not verify image content integrity at time-of-use. A local attacker with unprivileged code execution as the victim macOS user can modify the VM root filesystem image and have it trusted on subsequent Cowork VM boots, enabling persistent arbitrary code execution in the VM and access to host-mounted directories. The estimated CWE mapping is CWE-353 (Missing Support for Integrity Check).

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://cfp.recon.cx/recon-2026/talk/DZUQYU/
https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001110111111101011111111110000000000000000000000000000000000000000000000000000001010

Configurations

No configuration.

History

24 Jun 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 00:16

Updated : 2026-06-25 19:14

NVD link : CVE-2026-7574

Mitre link : CVE-2026-7574

CVE.ORG link : CVE-2026-7574

JSON object : View

Products Affected

No product.

CWE

CWE-353

Missing Support for Integrity Check

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