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CVE-2023-46136
high
CVSS 8.0
Vulnerability in werkzeug (CVE-2023-46136)
Summary
vulnerability in werkzeug (CVE-2023-46136). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `2.3.8` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2023-46136** has been found in werkzeug.
Risk of unauthorized operations or information disclosure. CVSS score: 8.0/10.
What to do: upgrade werkzeug to **2.3.8** or later.
If unsure, ask your IT team or search "werkzeug CVE-2023-46136" on the vendor's site.
CVE-2023-46136 (werkzeug) — CWE-400 / CVSS v3 8.0
Attack vector: adjacent-network / no user interaction
Patched: `2.3.8` — 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-400) exists in werkzeug.
📍 Affected scope
werkzeug — .
🔥 Severity
Severity: High (CVSS 8.0/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.3.8**.
🛡️ 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 'werkzeug' .` 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 'werkzeug' . | 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 `werkzeug` 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 werkzeug to 2.3.8ステージング環境で 2.3.8 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
pip
werkzeug
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.8"}]}]
PyPI
werkzeug
[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0rc1"},{"fixed":"2.3.8"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2023-46136
- advisory af854a3a-2127-422b-91ae-364da2661108
- package https://github.com/pallets/werkzeug
- web https://github.com/pallets/werkzeug/security/advisories/GHSA-hrfv-mqp8-q5rw
- web https://github.com/pallets/werkzeug/commit/b1916c0c083e0be1c9d887ee2f3d696922bfc5c1
- web https://github.com/pallets/werkzeug/commit/f3c803b3ade485a45f12b6d6617595350c0f03e2
- web https://github.com/pypa/advisory-database/tree/main/vulns/werkzeug/PYSEC-2023-221.yaml
- web https://github.com/pallets/werkzeug/commit/f2300208d5e2a5076cbbb4c2aad71096fd040ef9
- web https://security.netapp.com/advisory/ntap-20231124-0008
- web https://github.com/pallets/werkzeug/commit/cbb446fdcada7685fce936ded01b76c08dbd6eb5
- web https://github.com/advisories/GHSA-hrfv-mqp8-q5rw