Microsoft assigned CVE-2026-21520, a CVSS 7.5 indirect prompt injection vulnerability, to Copilot Studio. Capsule Security discovered the flaw, coordinated disclosure with Microsoft, and the patch was ...

Google is deploying a second AI model to monitor its Gemini-powered Chrome browsing agent after acknowledging the agent could be tricked into taking unauthorized actions through prompt injection ...

In the AI world, a vulnerability called a “prompt injection” has haunted developers since chatbots went mainstream in 2022. Despite numerous attempts to solve this fundamental vulnerability—the ...

A now-fixed flaw in Salesforce’s Agentforce could have allowed external attackers to steal sensitive customer data via prompt injection, according to security researchers who published a ...

A security researcher, working with colleagues at Johns Hopkins University, opened a GitHub pull request, typed a malicious instruction into the PR title, and watched Anthropic’s Claude Code Security ...

Prompt injection vulnerabilities may never be fully mitigated as a category and network defenders should instead focus on ways to reduce their impact, government security experts have warned. Then ...