CVE-2026-3449

3.3 LOW

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSi...

Published: 2026-03-03 · Last updated: 2026-05-19

Severity and scoring

CVSS: 3.3 LOW
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE: CWE-705

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-3449
[Other]https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a
[Other]https://github.com/TooTallNate/once/issues/8
[Other]https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612

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Same CWE

CVE-2026-10271 — A flaw has been found in a4m4 Student-Management-System up to f0c5f6842c5e8c431ff02b5260a565ca844df3a0 (6.3 MEDIUM)