Security patch:

Project Glasswing: what Mythos showed us

Cloudflare·Cloud·SecurityFix·5/18/2026

In recent weeks, we pointed Mythos and other security-focused LLMs at live code across critical parts of our infrastructure. We share what we observed, the models’ strengths and weaknesses, and what the work around them needs to look like before any of it can scale.

Why it matters → A security vulnerability was patched. Upgrade affected versions to mitigate risk.

Who should care → Anyone running affected versions in production.

View original source ↗

Source payload preview

{
  "guid": {
    "#text": "xrcYtr7kU54LNDB8MEmQY",
    "@_isPermaLink": "false"
  },
  "link": "https://blog.cloudflare.com/cyber-frontier-models/",
  "title": "Project Glasswing: what Mythos showed us",
  "pubDate": "Mon, 18 May 2026 06:00:00 GMT",
  "category": [
    "Security",
    "AI",
    "Agents",
    "Threat Intelligence",
    "LLM",
    "Risk Management",
    "Threat Operations",
    "Automation",
    "Engineering"
  ],
  "dc:creator": "Grant Bourzikas",
  "description": " In recent weeks, we pointed Mythos and other security-focused LLMs at live code across critical parts of our infrastructure. We share what we observed, the models’ strengths and weaknesses, and what the work around them needs to look like before any of it can scale. ",
  "content:encoded": " <p></p><p>For the l
…