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Claude Code leaks user email in User-Agent string

By PulseAugur Editorial · [1 sources] ·

A user reported that the Claude Code tool is exposing their real email address within the User-Agent string in curl commands. This behavior was not present in previous versions and occurred without explicit user confirmation. The issue affects version v2.1.212 of Claude Code when used with the Anthropic API and Sonnet 5.0 model on macOS. AI

IMPACT Potential privacy concern for users of AI development tools, highlighting the need for careful handling of sensitive information.

RANK_REASON User-reported bug in a specific tool's functionality.

Read on HN — anthropic stories →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code leaks user email in User-Agent string

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-reported bug in a specific tool's functionality.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, safety
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
57 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. HN — anthropic stories TIER_1 English(EN) · matada_ ·

    Claude Code is leaking real email address as a User-Agent string in curl command

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