CVE-2026-7574
Last modified
CVE-2026-7574 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.10% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Anthropic | Claude Desktop Cowork | >= 1.1348.0, <= 1.2278.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-7574?
How severe is CVE-2026-7574?
How do I fix CVE-2026-7574?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-7568In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.…7.5
- CVE-2026-7569Quest NetVault Backup viewclient Cross-Site Scripting Authen…8.8
- CVE-2026-7570Quest NetVault Backup NVBUDashboard SQL Injection Remote Cod…8.8
- CVE-2026-7571A flaw was found in Keycloak. A low-privilege user, with kno…7.1
- CVE-2026-7572An off-by-one error (CWE-193) in the ConsumeUnit16Array and …5.5
- CVE-2026-7573An authorization bypass (CWE-639) in the GetUserRoles gRPC A…7.7
- CVE-2026-7578A weakness has been identified in MacCMS Pro up to 2022.1.3.…4.7
- CVE-2026-7579A security vulnerability has been detected in AstrBotDevs As…7.3
- CVE-2026-7580A vulnerability was detected in Exiftool up to 13.53. Impact…5.3
- CVE-2026-7581A security vulnerability has been detected in alexta69 MeTub…4.3
- CVE-2026-7582A vulnerability was detected in AcademySoftwareFoundation Op…5.3
- CVE-2026-7583A flaw has been found in Open5GS up to 2.7.7. This issue aff…4.3
Are you affected by CVE-2026-7574?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST