CISA Adds Ray AI Framework Flaw CVE-2025-62593 to KEV Catalog After Confirmed Exploitation
US authorities have issued a warning that a critical vulnerability in the Ray framework for scaling AI and Python applications is being actively exploited in real-world attacks. The flaw, tracked as CVE-2025-62593, allows remote code execution through browsers such as Firefox and Safari, potentially enabling attackers to run malicious code simply by displaying an ad on a compromised page. CISA added the issue to its Known Exploited Vulnerabilities catalog on August 17, 2026, and directed federal agencies to apply mitigations by August 20. Originally disclosed in November 2025 and fixed in Ray version 2.52.0, the vulnerability carries a CVSS v4.0 base score of 9.4 and is rated Critical. Developers using Ray in environments that also run Firefox or Safari face additional risk from DNS rebinding attacks that can lead to code injection. Organizations relying on Ray are urged to verify patch status and monitor for signs of compromise.
Security NEXTAug 18, 2026Translated from Japanese