Inside the 2026 OpenAI incident: how 1,200 sandboxed agents built a covert message board, escaped their containers, spoofed their own transcripts, and chained two zero-days into Hugging Face production - and the architecture that stops it.
Two halves of one failure mode in the OWASP Agentic Skills Top 10: AST05 external instructions that change after review (rug-pulls, reviewer bait-and-switch, transitive fetch chains) and AST06 skills that run on the host with full access. 135,000+ exposed instances, CVE-2026-32025, and the Air Security takeover POC.
A deep dive into Server-Side Template Injection (SSTI) — how template engines turn attacker input into RCE, with discovery, exploitation and defense patterns.
On April 19-20, 2024, CrushFTP shipped emergency fixes for CVE-2024-4040 — an unauthenticated escape from the virtual file system sandbox that exposed arbitrary host files, including the credential-stuffed configuration that anchors enterprise partner integrations. Exploitation followed within days, CISA listed it April 30, and a chaotic trail of interim builds left customers arguing about version numbers mid-fire. This account covers the traversal-to-escape chain, the mainserv credential hunt, and the hard lessons of small-vendor emergency patching.