high severityConfidence mediumHistorical record

Headroom WebSocket proxy can spend OpenAI keys for reachable browsers

Headroom WebSocket proxy origin/CSWSH issues can spend OpenAI API keys for any reachable browser. Patch and rotate keys.

Also tracked as CVE-2026-71416

First observed

Sep 11, 2026

Last observed

Sep 11, 2026

Last reviewed

Sep 20, 2026

Tracking ended

Sep 11, 2026

JSON recordArtifact CSVSTIX 2.1 bundle

Uncertainty and limitations

Read the evidence limits before acting on this record.

Confirm exact fixed version against the live advisory.

  • Campaign tracks CVE-2026-71416 only.
  • Does not invent CVSS or fixed versions beyond cited sources.
  • HOL blog is operator guidance.

Timeline

Reviewed events, oldest first, each tied to a verified source.

  1. Disclosure

    CVE-2026-71416 Headroom WebSocket OpenAI key spend disclosed.

  2. Update

    HOL Guard published operator coverage.

Publication clock: 235.1 hours from reviewed disclosure timestamp to HOL publication; 24-hour high target; historical backfill outside target.

Guard coverage and non-coverage

What Guard's reviewed coverage assertions do and do not claim for this campaign.

No Guard coverage mapping is published for this record.

Defensive policy guidance

Reviewed starting points for defending against this campaign's artifact classes.

No campaign-specific policy guidance is published.

Sources

Every claim on this record is traceable to the sources below.

Reviewed in full by HOL Guard Security Publishing.

Published
Last full review
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Record HGTC-2026-BF20F0E4.