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Low severity3.3NVD Advisory· Published Mar 3, 2026· Updated May 19, 2026

CVE-2026-3449

CVE-2026-3449

Description

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
@tootallnate/oncenpm
>= 3.0.0, < 3.0.13.0.1
@tootallnate/oncenpm
< 2.0.12.0.1

Affected products

50

Patches

Vulnerability mechanics

References

6

News mentions

0

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