First reported theregister.com
Lead dispatch
First reported · updated · 3 reports embracethered.com
AWS Kiro: Arbitrary Code Execution via Indirect Prompt Injection
Researchers found a vulnerability (CVE-2026-10591) in AWS Kiro, an agentic IDE, where hidden instructions planted in a web page or source file that Kiro processes can trigger indirect prompt injection to rewrite Kiro's own MCP server configuration (~/.kiro/settings/mcp.json) or allowlist arbitrary Bash commands in .vscode/settings.json, achieving arbitrary code execution on the developer's machine with no approval prompt. The human-in-the-loop approval boundary is bypassed because Kiro can write to these config files without user consent, and AWS has issued a fix and CVE.indirect-prompt-injection · prompt-injection · remote-code-execution · tool-abuse · config-poisoning
ai-agents · mcp · llm · agentic-ide
Severity
0.85
The wire · latest
First reported · updated · 2 reports thehackernews.com
Worm compromises hundreds of popular npm packages | Datadog Security Labs
Datadog Security Labs reports that on August 4, 2026 a threat actor compromised hundreds of npm packages — some with over 150 million weekly downloads, including keyv, cacheable, and ecto — to propagate a self-spreading backdoor similar to the Shai-Hulud worm. The injected payloads notably add Claude (.claude/settings.json) and Visual Studio Code execution hooks and payload blobs, weaponizing AI coding-agent configuration as an execution vector. Details →First reported · updated · 2 reports thehackernews.com
Open VSX Removes 77 Malicious Evil Twin Extensions Exfiltrating Developer Data
Manifold Security identified 77 counterfeit "evil twin" extensions uploaded to the Open VSX registry between July 26 and August 1, 2026, each impersonating a real extension's name and namespace at version 0.0.1 and beaconing to a newly registered domain; 19 carried a full reconnaissance payload exfiltrating git remote host/org, commit email domain, workspace path, branch, HEAD commit, and CI project identifiers (effectively private repo paths on build runners). The packages were removed from Open VSX by August 3, though the contacted infrastructure remained live. The research ties the risk to automated name resolution by AI coding agents, devcontainer configs, and provisioning scripts that install by name across registries, citing Anthropic's July 30 slopsquatting disclosure where a model-invented package name was executed by fifteen real systems. Details →First reported knostic.ai
CodeRelay: 12 VS Code Extensions Disguised as Developer Tools
Knostic reports a coordinated campaign it dubbed "CodeRelay," involving 13 malicious VSIX packages across 12 VS Code extensions disguised as compilers, code runners, and "timeline" tools. Based on static analysis, the extensions are written to relay a developer's chat text, pasted code, and prior conversation history to one of three external LLM endpoints using embedded API keys, with ten hiding the logic in a compressed runtime-decoded payload and five using Unicode homoglyphs or invisible characters to disguise their names. Details →How the wire is made
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