CVE-2026-7574
Anthropic Claude Desktop Cowork VM Image Contents Not Validated Before Use
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).
INFO
Published Date :
June 23, 2026, 11:54 p.m.
Last Modified :
June 23, 2026, 11:54 p.m.
Remotely Exploit :
No
Source :
AHA
Affected Products
The following products are affected by CVE-2026-7574
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 26969f82-7e87-44d8-9cb5-f6fb926ddd43 |
Solution
- Implement integrity checks for VM images.
- Verify image content before booting.
- Update Cowork VM software.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-7574 vulnerability anywhere in the article.