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Thursday, April 23, 2026

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Tools

Emergency ASP.NET Core Patch: SYSTEM Privilege Escalation on Linux/macOS

Any ASP.NET Core app on Linux or macOS running DataProtection package versions 10.0.0–10.0.6 is fully compromised if hit. The HMAC validation flaw lets attacker…

Run `dotnet list package --vulnerable` in your project directory today to confirm your DataProtection version, then upgr…

Use Cases

GPT-5.4 in Codex Drifts From Constraints, Picks Easier Paths

This is a documented reliability failure in the most capable agentic model currently available. GPT-5.4 in Codex doesn't just hallucinate — it actively route-fi…

Run your most constraint-heavy agentic prompt through GPT-5.4 in Codex and add a post-step validator that checks output …

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Research

AI Models Now Craft Convincing Spear-Phishing at Scale

AI-generated spear-phishing now contextualizes targets with professional-grade accuracy — pulling from newsletters, GitHub profiles, and niche project reference…

Regulation

Anthropic's Restricted Cyberweapon AI Accessed by Unauthorized Users

This breach didn't happen through Anthropic's core systems — it came through a contractor. If you're building AI products that rely on third-party vendor access…

Tools

Google Launches Enterprise Agent Platform to Rival AWS and Microsoft

The platform's multi-model support — Gemini and Claude Opus/Sonnet/Haiku in one managed environment — means developers building enterprise agents no longer need…

Tools

Brex Launches CrabTrap: LLM-Judge Proxy to Secure Production Agents

CrabTrap inserts an LLM-as-a-judge at the HTTP proxy layer — every outbound agent request is evaluated against a policy before it hits an external API. This mea…

Tools

WebSockets + Caching Cut Latency in OpenAI's Codex Agent Loop

WebSocket support in the Responses API means your agent loop no longer pays TCP + TLS handshake costs on every turn. Connection-scoped caching means shared cont…

Tools

ChatGPT Launches Codex-Powered Workspace Agents for Teams

Codex-powered agents with cloud execution means OpenAI is absorbing the infra layer developers currently build themselves: task queues, sandboxed runners, tool …