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CVE-2026-3449
low
CVSS 3.3
Vulnerability in @tootallnate/once (CVE-2026-3449)
Summary
vulnerability in @tootallnate/once (CVE-2026-3449). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `2.0.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-3449** has been found in @tootallnate/once.
Risk of unauthorized operations or information disclosure. CVSS score: 3.3/10.
What to do: upgrade @tootallnate/once to **2.0.1** or later.
If unsure, ask your IT team or search "@tootallnate/once CVE-2026-3449" on the vendor's site.
CVE-2026-3449 (@tootallnate/once) — CWE-705 / CVSS v3 3.3
Attack vector: local / no user interaction
Patched: `2.0.1` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-705) exists in @tootallnate/once.
📍 Affected scope
@tootallnate/once — .
🔥 Severity
Severity: Low (CVSS 3.3/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.0.1**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r '@tootallnate/once' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r '@tootallnate/once' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `@tootallnate/once` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade @tootallnate/once to 2.0.1ステージング環境で 2.0.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
npm
@tootallnate/once
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.1"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-3449
- package https://github.com/TooTallNate/once
- web https://github.com/TooTallNate/once/commit/b9f43cc5259bee2952d91ad3cdbd201a82df448a
- web https://github.com/TooTallNate/once/issues/8
- web https://security.snyk.io/vuln/SNYK-JS-TOOTALLNATEONCE-15250612
- web https://github.com/TooTallNate/once/releases/tag/v2.0.1
- web https://github.com/advisories/GHSA-vpq2-c234-7xj6