GHSA-vpq2-c234-7xj6

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    GHSA-vpq2-c234-7xj6

    Published: 3 Mar 2026Last Modified: 10 Sept 2026
    Aliases:
    CVE-2026-3449

    Summary: @tootallnate/once vulnerable to Incorrect Control Flow Scoping

    Details: 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.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-3449, https://github.com/TooTallNate/once/issues/8, https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a, https://github.com/TooTallNate/once, https://github.com/TooTallNate/once/releases/tag/v2.0.1, https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612

    Affected packages

    Package

    Name: @tootallnate/once

    Purl: pkg:npm/%40tootallnate/once

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 3.0.0
    Fixed -3.0.1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-vpq2-c234-7xj6 | CVE-DB