Latest
●OpenAI agent swarm linked to RubyGems supply chain attack●FrontMCP SSRF patch bypassed via DNS tricks and redirects●Central Dogma Git mirror trusts any SSH host key●MySQL MCP server left SQL wide open in SSE mode●AI bug hunting ends the era of security through obscurity●Hugging Face tells AI agents to go hack a benchmark instead●Anthropic says hackers used Claude to mine 1.8M Android apps●Anthropic says Claude was abused to automate attacks and weapons work
Sunday, 13 September 2026
8 agent hacks today▲ 7 vs yesterday (1)
The Agentic TimesPowered byVortal

Incident database

CVE-2026-54316: Claude Code WebFetch allowlist enabled covert data exfiltration

In Claude Code versions 0.2.54 through 2.1.162, the pre-approved bare hostname huggingface.co allowed any path on that domain—including attacker-controlled model repositories—to be fetched by WebFetch without a permission prompt or --allowedTools enforcement. An attacker able to inject untrusted content into the context could use HuggingFace download counts as an out-of-band channel to exfiltrate files, environment variables or command output; fixed in 2.1.163.

Disclosed 23 June 2026 · Record updated 13 September 2026

Impact

Untrusted content injected into a Claude Code context could trigger auto-approved WebFetch requests to attacker-controlled HuggingFace repository paths, creating a covert channel to encode and exfiltrate data accessible to Claude such as files, environment variables or command output.

Our coverage

No articles linked to this incident yet.

Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-54316