GHSA-VPQ2-C234-7XJ6

Vulnerability from github – Published: 2026-03-03 06:31 – Updated: 2026-03-04 20:15
VLAI?
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.

Severity ?
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
1.9 (Low)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@tootallnate/once"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-3449"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-705"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-04T20:15:03Z",
    "nvd_published_at": "2026-03-03T05:17:25Z",
    "severity": "LOW"
  },
  "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.",
  "id": "GHSA-vpq2-c234-7xj6",
  "modified": "2026-03-04T20:15:03Z",
  "published": "2026-03-03T06:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3449"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TooTallNate/once/issues/8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/TooTallNate/once"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "@tootallnate/once vulnerable to Incorrect Control Flow Scoping"
}


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