Guy Gilad

Frontier AI models combined with a rampant rate of new critical vulnerabilities mean speed and context are everything. When a critical production service starts behaving suspiciously, every second spent jumping between different tools and dashboards is a second lost to a potential attacker. At Upwind, we are excited to introduce a game-changer for security teams:…

Executive Summary On June 17 2026, a coordinated supply chain attack pushed a malicious easy-day-js package into the dependency tree of the entire @mastra/* npm organization. Any npm install for a compromised @mastra/* package pulls [email protected], which runs a postinstall dropper, downloads a cross-platform RAT, installing persistent backdoors on macOS, Linux, and Windows.  The Mastra…

Executive Summary On June 1, 2026, unauthorized commits were pushed to repositories in the RedHatInsights GitHub organization and used to publish malicious versions of 32 packages under the @redhat-cloud-services npm scope.The campaign, tracked as Miasma, executes a 4.2 MB obfuscated payload through an npm preinstall hook the moment any of these packages is installed, directly…

Executive Summary Dirty Frag is a new Linux kernel local privilege escalation that combines two kernel bugs - one in the IPsec subsystem and one in RxRPC, giving any unprivileged local user a root shell on every major distribution. The exploit is reliable and lasts until a reboot or cache fault Public PoC code has…

Executive Summary On March 24, 2026, the popular Python LLM proxy library litellm suffered a critical software supply chain compromise when malicious versions 1.82.7 and 1.82.8 were published directly to PyPI, bypassing the project's normal GitHub-based release process. At the same time, our security team detected malicious commands being executed on CI/CD runners across different…

Executive Summary On March 19-20, 2026, the Trivy supply chain incident impacted the trivy project and the GitHub Actions many teams rely on to install and run Trivy in CI/CD pipelines. Late Thursday night, Upwind’s MDR team observed observed anomalous Trivy activity inside a customer environment that deviated from established runtime baselines. The team identified…

Executive Summary CVE-2026-21858 (Ni8mare) is a critical unauthenticated remote code execution vulnerability in n8n, a widely used workflow automation platform. The flaw is caused by content-type confusion in webhook request handling, allowing attackers to forge uploaded files, read arbitrary local files, forge administrator sessions, and ultimately execute commands on the underlying host. The vulnerability affects…

Executive Summary: The Three-Headed Mystery Shai-Hulud 3.0, the sandworm, is back. But is it a new monster, or just the same old worm with a new trick? The security community is currently buzzing about rumors of “Shai-Hulud 3.0.” Reports suggest the sandworm has returned and panic levels are high. But when we look at the…

Two new critical vulnerabilities, CVE-2025-55182 (React) and CVE-2025-66478 (Next.js), were publicly disclosed today, impacting React and Next.js applications. These issues allow unauthenticated remote code execution under default framework configurations, requiring no special setup or developer mistakes. Testing confirms that even newly generated Next.js applications created with create-next-app and built for production are immediately vulnerable without…