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.

INFO

Published Date :

2026-03-03T05:00:01.085Z

Last Modified :

2026-03-03T15:31:46.840Z

Source :

snyk
AFFECTED PRODUCTS

The following products are affected by CVE-2026-3449 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-3449.

URL Resource
https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a cve-icon cve-icon cve-icon
https://github.com/TooTallNate/once/issues/8 cve-icon cve-icon cve-icon
https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612 cve-icon cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact