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CVE-2023-45133
Vulnerability in @babel/traverse (CVE-2023-45133)
Summary
vulnerability in @babel/traverse (CVE-2023-45133). Successful exploitation can lead to full system takeover. Exploitable via ``useBuiltIns``. Mitigation: upgrade to `8.0.0-alpha.4` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2023-45133** has been found in @babel/traverse.
Attackers can target a specific entry point like ``useBuiltIns`` over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: ?/10.
What to do: upgrade @babel/traverse to **8.0.0-alpha.4** or later.
If unsure, ask your IT team or search "@babel/traverse CVE-2023-45133" on the vendor's site.
CVE-2023-45133 (@babel/traverse) — CWE-184 /
Attack vector: local / unauthenticated / no user interaction
Attack surface: `useBuiltIns`
Patched: `8.0.0-alpha.4` — 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-184) exists in @babel/traverse. Attackers reach the vulnerable code path via ``useBuiltIns`` without authentication.
📍 Affected scope
@babel/traverse — . Attack surface: `useBuiltIns`.
🔥 Severity
Severity: ?. Successful exploitation can lead to full system takeover
🔧 How to fix
Update to **8.0.0-alpha.4**.
🛡️ 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 '@babel/traverse' .` 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
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1Identify exposure identify
grep -r '@babel/traverse' . | 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 `@babel/traverse` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade @babel/traverse to 8.0.0-alpha.4ステージング環境で 8.0.0-alpha.4 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
@babel/traverse
[{"type":"SEMVER","events":[{"introduced":"8.0.0-alpha.0"},{"fixed":"8.0.0-alpha.4"}]}]
npm
babel-traverse
[{"type":"SEMVER","events":[{"introduced":"0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2023-45133
- package https://github.com/babel/babel
- web https://github.com/babel/babel/security/advisories/GHSA-67hx-6x53-jw92
- web https://github.com/babel/babel/pull/16033
- web https://github.com/babel/babel/commit/b13376b346946e3f62fc0848c1d2a23223314c82
- web https://babeljs.io/blog/2023/10/16/cve-2023-45133
- web https://github.com/babel/babel/releases/tag/v7.23.2
- web https://github.com/babel/babel/releases/tag/v8.0.0-alpha.4
- web https://lists.debian.org/debian-lts-announce/2023/10/msg00026.html
- web https://www.debian.org/security/2023/dsa-5528