CVE-2026-7574

HIGH

CVSS v3.1: 8.7

No user interaction

Source data as of:

At a glance

Severity
HIGH
CVSS
8.7 v3.1 · NVD
EPSS
EPSS not provided by FIRST.org for this CVE
CISA KEV
No
Attack conditions (CVSS vector)
No user interaction · Source: NVD Vector
Published
2026-06-24 · Modified: 2026-06-24

CVSS / EPSS / KEV

CVSS v3.1 8.7 / 10 HIGH Source: NVD
EPSS EPSS not provided by FIRST.org for this CVE Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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).

Record details

CVE ID
CVE-2026-7574
CVSS (v3.1)
8.7 (HIGH)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Exploitability subscore
2.0
Impact subscore
6.0
CISA KEV
No
Weakness (CWE)
CWE-353
Affected configurations (CPE)
0
Published
2026-06-24
Modified
2026-06-24
Status
Received

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.