PHP blames supply chain security biz Chainguard for putting huge chunks of the web at risk

PHP developers have accused software supply chain security shop Chainguard of effectively revealing critical bugs in the open-source scripting language ahead of a planned official disclosure.

On Wednesday, just hours after releasing emergency patches for the two bugs collectively called PHP2shell, PHP maintainers published a blog about how the vulnerabilities were found and fixed.

They credited researchers at Calif, OpenAI, and Wiz with finding the security holes between August and September. All three companies have said they used AI models to find the vulnerabilities, which are now tracked as CVE-2026-109618 and CVE-2026-109619, and can allow an unauthenticated attacker to execute code on servers running PHP.

This is especially serious because PHP powers huge chunks of the public web. It also adds a dose of irony to the “leak and disrupted disclosure” part of the blog, which blames Chainguard - a company that aims to secure software supply chains by hardening open source code - for the messy disclosure.

The trouble, …