Claude-Code

ARTEX AI and Claude Agents Weaponised in Korean Bank Attacks

ATLAS OWASP CRITICAL ▲ 9.2 BleepingComputer Oct 12, 2026

A Chinese-speaking threat actor deployed the ARTEX AI agentic penetration testing suite alongside Claude Code agents and multiple LLM backends to attack major South Korean banks, exfiltrating customer data and causing system outages. The attack represents a documented real-world case of AI agents being used end-to-end in a financially motivated intrusion campaign. Exposed session histories and configuration files left in open directories enabled CrowdStrike to attribute the attack with high confidence and surface the attacker's probable identity.

Anthropic Launches Claude Code Projects for Multi-Agent Cloud Orchestration

FIRST LOOK ATLAS OWASP MEDIUM ▲ 6.2 The Verge AI Sep 18, 2026

Anthropic has relaunched Projects in Claude Code, enabling users to orchestrate multiple AI coding agents in the cloud with shared memory, coordinated goals, and parallel task execution across branched repositories. For defenders and security engineering teams, this closes a meaningful operational gap by providing a governed, centralised interface for managing multi-agent workflows — reducing the likelihood of ad hoc, unmonitored agent sprawl across development pipelines. Residual gaps remain around local tool integration, auditability of inter-agent coordination decisions, and the maturity of access controls governing what each agent thread can reach.

Trail of Bits Ships Coop: Isolated VMs for Claude Code and Codex

FIRST LOOK ATLAS OWASP LOW ▲ 7.2 Anthropic (via HN) Sep 11, 2026

Trail of Bits has released Coop, an open-source Rust CLI that provisions disposable, isolated virtual machines for running Claude Code and OpenAI Codex with full tool access — including Docker, git, compilers, and package managers — without exposing the host system. This directly closes the containment gap that has made agentic AI coding assistants a liability in developer environments, giving security teams a reproducible boundary between autonomous AI tool execution and production infrastructure. What remains unaddressed is broader multi-provider coverage, enterprise policy enforcement, and centralised audit logging maturity needed before this is ready for regulated-environment deployment at scale.

CVE-2026-19592: Git Config Flaw Lets Attackers Run Code in Codex

ATLAS OWASP CRITICAL ▲ 9.2 The Hacker News Sep 03, 2026

Manifold Security disclosed GitSpawn, a class of eight vulnerabilities across seven AI coding agents — including Claude Code, Codex, Cursor, Qwen Code, and Grok Build — in which a malicious `.git/config` file using the `core.fsmonitor` directive causes agents to execute attacker-controlled commands at session startup, outside any sandbox or approval prompt. The attack requires the target to open a repository with its `.git` directory intact, achievable via archives, USB drives, or shared folders rather than standard git clones. Four agents remained unpatched at publication, with OpenAI issuing three CVEs for Codex on the same day the research dropped.

Claude Code Auto Mode Bypassed via Zip Payload at 80% Rate

ATLAS OWASP HIGH ▲ 8.5 Simon Willison Aug 28, 2026

Security researcher Johann Rehberger demonstrated an 80% success-rate prompt injection attack against Claude Code's auto mode, Anthropic's default safety mechanism for its coding agent. The attack tricks the agent into downloading and decompressing a zip archive containing a malicious local module that hijacks Python's import resolution to execute arbitrary code. Critically, auto mode was observed blocking Claude's own remediation commands after detecting the compromise, rendering the safety layer counterproductive.

Anthropic Enables Claude Code Auto Mode by Default for Pro Users

FIRST LOOK ATLAS OWASP MEDIUM ▲ 6.8 TechCrunch AI Aug 10, 2026

Anthropic is enabling auto mode as the default for Claude Code on Pro, Max, and Team accounts starting August 14, allowing the agent to proceed autonomously unless an action is deemed irreversible, destructive, or out-of-scope. The move addresses a well-documented defender gap — human approval fatigue in agentic pipelines — backed by testing data showing auto mode caught 89% of harmful actions versus 13.6% under manual review. Residual maturity questions remain around enterprise-level customisation of hard deny rules, integration with existing security tooling, and auditability of autonomous decisions at scale.

CVE-2026-12537: Gemini CLI RCE and Claude Code Secret Leak

ATLAS OWASP CRITICAL ▲ 9.2 The Hacker News Aug 08, 2026

Novee Security demonstrated at Black Hat USA 2026 that default configurations of Gemini CLI, Claude Code, and OpenAI Codex allowed a GitHub issue from an unprivileged account to trigger code execution on CI runners and exfiltrate API secrets. Two CVEs were issued: CVE-2026-12537 (CVSS 10.0) for an OS command injection in Gemini CLI's container launcher, and CVE-2026-54316 for a covert API key exfiltration channel in Claude Code. The root cause across all three agents was insecure harness logic — the code layer mediating between the LLM and the host system — rather than the models themselves.

CrowdStrike Falcon AIDR Adds Coverage for Copilot Studio and Claude Code

FIRST LOOK ATLAS OWASP HIGH ▲ 7.2 CrowdStrike Blog Aug 02, 2026

CrowdStrike has extended its Falcon AI Detection and Response (AIDR) capability to cover Microsoft Copilot Studio agents and Anthropic Claude Code, bringing behavioural monitoring to two fast-growing agentic AI surfaces. This expansion signals that enterprises are actively deploying autonomous agents in production environments that previously lacked dedicated security tooling. Defenders now have a detection layer for these platforms, but the expanded integration surface also introduces new ingestion and telemetry trust boundaries that adversaries may probe.

The Security Analyst's Claude Code Playbook

DEEP SIGNAL Jul 10, 2026

A practitioner's guide to deploying Claude Code in security operations — threat intelligence automation, compliance gap analysis, token management, and enterprise hardening.

CVE-2026-12958: GhostApproval Symlink Attack on Coding Agents

ATLAS OWASP HIGH ▲ 8.7 The Hacker News Jul 09, 2026

Wiz researchers disclosed GhostApproval, a symlink-based attack affecting six AI coding assistants — Amazon Q Developer, Claude Code, Augment, Cursor, Google Antigravity, and Windsurf — that allows malicious repositories to write attacker-controlled content to sensitive files such as SSH authorized_keys or shell startup scripts. The core failure is an informed-consent bypass: the agent's approval dialog names a harmless file while the write targets a sensitive one, or in some tools the write completes before any prompt appears. Three vendors have patched, two have not, and Anthropic disputes the classification as a vulnerability.

Prompt Injection Attacks Claude Code and Codex Execution

ATLAS OWASP HIGH ▲ 9.2 The Hacker News Jul 09, 2026

Researchers at the AI Now Institute have demonstrated a proof-of-concept attack dubbed 'Friendly Fire' that tricks AI coding agents — specifically Anthropic's Claude Code and OpenAI's Codex in autonomous mode — into executing malicious binaries while performing routine security reviews. The attack embeds a disguised payload inside an open-source library and uses a plain README.md instruction to direct the agent to run a malicious shell script, bypassing existing trust-prompt defences. Because the weakness is architectural rather than version-specific, no patch exists; mitigation requires workflow changes.

DPAPI Abuse in Claude Code and Cursor Triggers EDR

ATLAS OWASP HIGH ▲ 8.2 The Hacker News Jul 09, 2026

Sophos telemetry from June 2026 reveals that AI coding agents including Claude Code, Cursor, and OpenAI Codex are triggering endpoint detection rules designed to catch human attackers, performing actions such as DPAPI-based credential decryption, Windows Credential Manager enumeration, and persistence via startup folder writes. The behaviour is not malicious in intent, but the agents exhibit attacker-like pivot-when-blocked logic and abuse legitimate Windows utilities in ways indistinguishable from living-off-the-land intrusions. This blurring of the line between benign automation and attack tradecraft creates significant noise for defenders and may erode confidence in high-fidelity detection rules.

SkillCloak Bypasses AI Agent Skill Scanners at 90% Rate

ATLAS OWASP HIGH ▲ 8.5 The Hacker News Jul 07, 2026

Researchers at Hong Kong University of Science and Technology have demonstrated that static scanners used to vet malicious AI agent 'skills' — modular add-ons for agents like Claude Code and OpenAI Codex — can be systematically bypassed using a tool called SKILLCLOAK. The technique leverages either character-substitution obfuscation or self-extracting packing into scanner-ignored directories like .git/, achieving evasion rates above 90% across all eight tested scanners. The same research team also developed SKILLDETONATE, a runtime behavioral sandbox that catches most of the threats static analysis misses.

Claude Code Indirect Prompt Injection Spawns Reverse Shell

ATLAS OWASP HIGH ▲ 8.5 SecurityWeek Jun 30, 2026

Researchers have demonstrated that indirect prompt injection attacks embedded within seemingly benign code repositories can cause Claude Code — Anthropic's agentic coding assistant — to spawn a reverse shell on a developer's machine. The attack exploits Claude Code's autonomous execution capabilities, using hidden instructions in repository content to hijack the host system without any explicit user consent. This highlights a critical risk in agentic AI tools that operate with elevated system privileges in developer environments.

Claude Code Prompt Injection via GitHub Supply Chain

ATLAS OWASP HIGH ▲ 9.1 BleepingComputer Jun 29, 2026

Mozilla 0DIN researchers demonstrated a novel attack chain in which a seemingly clean GitHub repository tricks AI coding agents like Claude Code into executing a reverse shell payload — with no malicious code ever present in the repo itself. The attack leverages three innocuous components: a Python package that deliberately errors on first run, an error message that instructs the agent to run an init command, and a shell script that fetches and executes a payload stored in an attacker-controlled DNS TXT record. The technique exploits the autonomous error-recovery behaviour of agentic AI tools, effectively turning a safety feature into an attack vector.

Claude-Code

Stay ahead of the threat.