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AI cartoon by Zimbo: Satirical cartoon: a cheerful Claude Code robot hands YOUR EMAIL cards to website storefronts while a security robot's REGEX net catches only the USER-AGENT card and the rest escape through the WEBFETCH door, on plain white paper.
Anthropic's Claude Code email fix still leaks in 8 of 23 tries. The regex net catches the one reported shape; the rest sail through — and the WebFetch hole isn't even in the test.Zimbo for AI News Page

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Anthropic's fix for Claude Code leaking users' email addresses is 171 lines of regexes in a built-in mod, cc-plugin-privacy, shipped in v2.1.317 on November 3 — 101 days after the original report.

A developer ran the shipped code through 23 leak shapes: it blocks the exact leak from the bug report, but 8 other shapes sail through — a From: header, basic auth, a variable holding the address, double percent-encoding, or putting the address in a URL or POST body.

The biggest hole is not in the 23 at all: the hook only watches shell tools, so if the model does its research with WebFetch or WebSearch instead of curl, nothing in the mod ever sees the address — and Anthropic's own README calls the protection 'a courtesy, not a boundary.'

The joke is the leaky fix: a cheerful Claude Code robot hands YOUR EMAIL cards to a row of website storefronts while a proud security robot's REGEX net catches only the one USER-AGENT card, and the rest escape — one flying straight through the WEBFETCH door.

READ THE FULL REPORT — DEV ↗

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