CVE-2026-7574 | Anthropic Claude Desktop Cowork VM image handling (confirmed… | CVSS 8.7 HIGH

Description

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).

Metadata

CVE ID: CVE-2026-7574
State: PUBLISHED
Assigner: AHA
Reserved: 2026-05-01 02:06 UTC
Published: 2026-06-23 23:54 UTC
Last updated: 2026-06-23 23:54 UTC
Primary CWE: CWE-353
CWE-353 Missing support for integrity check
Vendor / Product: Anthropic / Claude Desktop Cowork
Sources: cve.org · NVD

Severity & Metrics

8.7 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Affected products (1)

Vendor	Product	Platform	Versions
Anthropic	Claude Desktop Cowork	—	1.1348.0 ≤ 1.2278.0

Weakness (CWE)

CWE	Source	Description
CWE-353	cna	CWE-353 Missing support for integrity check

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.7	HIGH	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

References (2)