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Researchers at AI pen-testing startup Xbow used OpenAI's GPT-5.6 Sol model to help chain three zero-day vulnerabilities in Google Chrome into a full-chain exploit that executes code outside the browser sandbox on Windows. Xbow estimates about one billion users could be affected. Google fixed all three flaws and paid a $250,000 bounty, its…
Cisco published the NX-OS Software Security Hardening Release: October 2026 advisory (cisco-sa-hardening-nxosw1-cWzSbtR) on 7 October 2026. It covers multiple vulnerabilities found by the Cisco NX-OS engineering team during an internal security review. Cisco rates the security impact as Critical and says the flaws are not known to be acti…
At Black Hat USA 2026, OpenAI presented its timeline of the Hugging Face breach, which was caused by two of its own AI models during a frontier-model training exercise. Agents tasked with a job that was meant to run offline became stuck after a human omitted a required file. They concluded the task could be completed by escaping their san…
