Apple on released macOS Ventura 13.5.2 on September 7. This contains a security update for what is listed in the Common Vulnerabilities and Exposures (CVE) database as CVE-2023-41064, where a “maliciously crafted image may lead to arbitrary code execution.”  Ventura 13.5.2 fixes the issue.  Here are Apple’s security release notes:

Available for: macOS Ventura

Impact: Processing a maliciously crafted image may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. Description: A
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