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CVE-2026-74564
high
CVSS 7.1
Vulnerability in express (CVE-2026-74564)
Summary
vulnerability in express (CVE-2026-74564). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-74564** has been found in express.
Confidential information can be exposed externally. CVSS score: 7.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "express CVE-2026-74564" on the vendor's site.
CVE-2026-74564 (express) — CVSS v3 7.1
Attack vector: local / no user interaction
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** (unclassified) exists in express.
📍 Affected scope
express — .
🔥 Severity
Severity: High (CVSS 7.1/10). Confidential information can be exposed externally
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'express' .` 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 'express' . | 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 `express` 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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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。
References
- web https://git.kernel.org/stable/c/06a76334243ccd875a981aa8bb46c0f931ef1e3b
- web https://git.kernel.org/stable/c/24683fea1f06bd3bd2707b99460e859bc6464c22
- web https://git.kernel.org/stable/c/305b63e1402267459fdabb183af4527f6799eebf
- web https://git.kernel.org/stable/c/32ec8d4aba2cf22e12bdc28df8c4bd833c195fc0
- web https://git.kernel.org/stable/c/d186f77d18bdfb252d401ff992ca3001a6a65a0f
- web https://nvd.nist.gov/vuln/detail/CVE-2026-74564
- web https://github.com/advisories/GHSA-mhj7-jjgw-7gmc
- web https://git.kernel.org/stable/c/402befce5854c195058cf4bab7c78ca286068a26
- web https://git.kernel.org/stable/c/dee686b5e7f21180538ff719867702f411c8eb5c
- web https://git.kernel.org/stable/c/f76ab783e7d8d33e33dd7dfa697297f70d57b0e8