CVE-2026-63349: Privilege Dropping Bypass and Denial of Service in AnyIO Subprocess Module Vulnerability ID: CVE-2026-63349 CVSS Score: 7. 0 Published: 2026-09-18 CVE-2026-63349 is a critical privilege-dropping bypass vulnerability in the AnyIO asynchronous framework (versions 4. 14.
Source: [Dev.to](https://dev.to/cverports/cve-2026-63349-cve-2026-63349-privilege-dropping-bypass-and-denial-of-service-in-anyio-subprocess-2ojb)