The landing site for Trackr Services
Immutable base images plus systemd sysext/confext overlays have quietly become the standard for fleet-managed Linux in 2026. They also created a persistence surface most SOCs are not yet watching.
A double-free in Apache httpd 2.4.66’s mod_http2 lets unauthenticated clients crash workers reliably and, on certain builds, opens a path to remote code execution. Here’s the defender-oriented breakdown: mechanism, detection, remediation, and 800-53 mapping.
Model Context Protocol gives agents a clean way to call tools, but it also gives every piece of retrieved content a direct line to those tools. The classic confused deputy problem is back, and most deployments are not handling it.
Model Context Protocol turned every internal API into an LLM-reachable tool. The threat model didn’t catch up. Here’s what tool poisoning looks like in production and how to harden against it.
Model Context Protocol turned every developer’s laptop into a tool-calling agent host. The trust model that came with it is closer to npm circa 2016 than to anything a serious authorizing official would sign.
Trellix has confirmed unauthorized access to part of its source code repository. The disclosure is thin on detail and heavy on implications for every shop running Trellix EDR or XDR.
Theori’s Copy Fail flaw turns a nine-year-old in-place optimization in the kernel’s AEAD socket layer into a deterministic 4-byte page-cache write. No race, no offset hunting, no per-distro tuning. A 732-byte Python script edits a setuid binary’s cached pages and hands you root on Ubuntu, RHEL, SUSE, and Amazon Linux without modification.
Indirect prompt injection has graduated from a research curiosity to a routine cause of agent compromise. Here is what defenders are actually shipping in 2026, and where the control gaps still are.
Agentic AI breaks the assumptions baked into service accounts and long-lived API keys. Here is what an honest non-human identity model looks like when an LLM is the principal making the call.
Prompt injection isn’t a content-filtering problem. It’s a control-flow problem, and 2026’s serious agent deployments are starting to treat it that way.
