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CVE-2026-3449

CVE-2026-3449

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. This can cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.

CVSS 4.8 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: node

Affected products and versions

Original sources

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