🔒 Security
Security alerts, best practices, and vulnerability reports

AI Auditor zkao Finds Critical Soundness Bug in OpenVM's zkVM Guest Library
ZK/SEC's AI auditor zkao found a critical soundness bug in OpenVM's pairing library allowing a malicious prover to forge pairing equalities, fixed in OpenVM 1.6.0 (CVE-2026-46669).

VulnHunter: Capital One's Agentic AI Code Security Tool Now Open Source
Capital One open-sourced VulnHunter, an agentic AI tool that simulates attacker entry points, falsifies findings to cut false positives, and generates targeted code fixes.

ClawGuard: A Default-Deny Firewall for Local AI Agents
ClawGuard intercepts every tool call from OpenClaw/Hermes agents, applying a default-deny policy to block dangerous operations like reading .env or rm -rf and requiring phone approval for ambiguous actions.

Claude Code Install Phishing Site Tops Google Search Results
A phishing site impersonating the official Claude Code download page appears as the first Google result for "Claude code install mac." Users are warned not to download from the fake site.

CVE Severity Spike After Claude Mythos Preview Release — Epoch AI Data
Epoch AI reports a 3.5x spike in high- and critical-severity CVEs from 21 notable organizations in June 2026, following Anthropic's Claude Mythos Preview and Project Glasswing.

OpenClaw Blocked a Sketchy Script From a Productivity Playbook, Then Continued Building Financial Workbook
A user gave OpenClaw a zip with a suspicious productivity playbook. OpenClaw refused to run the script, flagged it for auto-installing into the skills directory, and manually built the workbook using built-in skills.

Fil-C Makes setjmp/longjmp and ucontext Memory Safe
Fil-C implements setjmp/longjmp and ucontext APIs without stack corruption or dangling pointers, preventing common misuse that leads to crashes or exploits.

Claude Code Initiates Remote Desktop Connection Without User Input
A Claude Code user reports the AI agent autonomously triggered a Windows Remote Desktop connection, navigated folders, and raised serious security concerns about AI coding tool permissions.

13 Words on Reddit Can Manipulate AI Search: Cornell Research
Cornell research shows that a 13-word snippet on Reddit or Wikipedia can reliably poison AI search agents. Half of all AI citations come from UGC sites, making it trivially easy for brands to inject promotional content.

OpenClaw Security: The Hardened Baseline You Should Start With
Self-hosting OpenClaw doesn't automatically make it secure. A Reddit post details the hardened baseline config: local-only Gateway, per-peer DM isolation, deny runtime/fs/automation tool groups, exec locked down, and mention-gated groups.

CVE-2026-LGTM: When AI Agents Trust Each Other and Break Everything
A satirical but realistic incident report shows how seven AI security gates failed to stop a malicious package, leading to credential exfiltration and a $1.7M inference bill.

Pi: $100M AI Cyber Agent from Ex-Tesla Hacker Secures xAI, Patches Bugs in Minutes
Pi, an AI security agent from former Tesla lead hacker Yoni Ramon, uses context-aware vulnerability triage and automated patching. Early customer Navan reports 90% of bugs are fixed in minutes, saving 1-2 FTEs.