# CVE-2026-7574: Anthropic Claude Desktop Cowork VM Image Contents Not Validated Before Use

> CVE-2026-7574: Anthropic Claude Desktop Cowork VM Image Contents Not Validated Before Use. CVSS 8.7 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-7574
Last updated: 2026-06-25T19:14:05Z

- Published: 2026-06-23 23:54 UTC · Updated: 2026-06-25 19:14 UTC · Assigner: AHA
- CVSS: 8.7 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
- EPSS: 0.12%, 2th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-353

## 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).

## Affected vendors and products

- Anthropic: Claude Desktop Cowork

## Tracked companies

- [Anthropic](https://rewindex.com/company/anthropic.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-7574)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-7574)
- [https://cfp.recon.cx/recon-2026/talk/DZUQYU/](https://cfp.recon.cx/recon-2026/talk/DZUQYU/)
- [https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001110111111101011111111110000000000000000000000000000000000000000000000000000001010](https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001110111111101011111111110000000000000000000000000000000000000000000000000000001010)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-7574 · Markdown: https://rewindex.com/cve/CVE-2026-7574.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-7574 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:29.168Z