Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

How we mitigated a vulnerability in Cloudflare's ACME validation logic

On October 13, 2025, security researchers from FearsOff identified and reported a vulnerability in Cloudflare's ACME (Automatic Certificate Management Environment) validation logic that disabled some of the WAF features on specific ACME-related paths. The vulnerability was reported and validated through Cloudflare’s bug bounty program. The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path (/.well-known/acme-challenge/*).

Astro is joining Cloudflare

The Astro Technology Company, creators of the Astro web framework, is joining Cloudflare. Astro is the web framework for building fast, content-driven websites. Over the past few years, we’ve seen an incredibly diverse range of developers and companies use Astro to build for the web. This ranges from established brands like Porsche and IKEA, to fast-growing AI companies like Opencode and OpenAI.

New Cloudflare report warns of a 'Technical Glass Ceiling' stifling AI growth and weakening cybersecurity

New research shows that organisations modernising apps are 3x more likely to see AI payoffs, while those clinging to legacy systems face rising security risks and developer talent shortages.

A CISO's Honest Take on Regulation

Cybercriminals don't care about borders. So why do we have 12 different regulatory frameworks for the same threat? Olivier Busolini, Group Head of Information Security at Mashreq Bank, voiced the frustration every global CISO feels: "In every country, I have 12 countries at Mashreq. In every country, there is a slightly different or sometimes vastly different requirement that I have to abide to.".