Letta Classic was shipping HTTP2Shell
HTTP2Shell (CVE-2026-111497) is a 9.2 in Google's Brotli decoder — out-of-bounds write, both directions, if you decode a crafted br blob. [Pilvar](https://x.com
💾 The Modular, Self-Hosted Agentic Operating System
SanctumOS is a specialized, self-hosted agentic OS—a flavor of Letta—designed to run fully autonomous, context-rich AI agents. Featuring sensory filtering, deep research agents, real-time event processing, and infinite memory management, SanctumOS empowers you to orchestrate modular, personalized agent ecosystems with complete privacy and zero vendor lock-in.
▶ SanctumOS at a Glance
Modular Architecture
Rapidly deploy specialized agents—deep research, sensory filters, memory pruning—with clean, plugin-driven integration.
Infinite Context & Memory
Advanced, layered memory management with automatic pruning, semantic enrichment, and archival storage—your agents remember exactly what matters.
Robust Security & Privacy
Secure, sandboxed execution and built-in access controls. Your data never leaves your infrastructure—zero third-party exposure.
Real-time Event Handling
High-performance reflex processing through sensory middleware and proactive memory refinement, keeping your agents responsive and contextually aware.
Latest Updates
Share from your phone. Get a URL your agents can fetch.
You already know the Share sheet. Photos, screenshots, a note from another app — tap Share, pick a target, done. Sanctum Share is that target for [Sanctum Temp](https://tmp.sanctumos.org): it takes whatever you hand it and turns it into something the rest of your stack can use —
Athena Diary: free writing without burning core
> Core memory is the wrong surface for free writing. Athena Diary is the off-context journal that lets long-running agents write as much as they want without ta