Description
A vulnerability was identified in the XPC services of Fantastical. The services failed to implement proper client authorization checks in its listener:shouldAcceptNewConnection method, unconditionally accepting requests from any local process. As a result, any local, unprivileged process could connect to the XPC service and access its methods.
This issue has been resolved in version 4.0.16.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Flexibits | Fantastical | < 4.0.16 | 4.0.16 |
References
- https://cert.pl/en/posts/2025/08/CVE-2025-8533 third-party-advisory
- https://flexibits.com/fantastical product