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CVE-2026-31466
medium
CVSS 4.7
Vulnerability in linux (CVE-2026-31466)
Summary
vulnerability in linux (CVE-2026-31466). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31466** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 4.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-31466" on the vendor's site.
CVE-2026-31466 (linux) — CWE-362 / CVSS v3 4.7
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** (CWE-362) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: Medium (CVSS 4.7/10). Risk of unauthorized operations or information disclosure
🔧 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 'linux' .` 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 'linux' . | 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 `linux` を grep し、稼働しているサービス・バージョンを把握する。
-
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/426ee10711586617da869c8bb798214965337617
- web https://git.kernel.org/stable/c/4c5e7f0fcd592801c9cc18f29f80fbee84eb8669
- web https://git.kernel.org/stable/c/722cfaf6b31d31123439e67b5deac6b1261a3dea
- web https://git.kernel.org/stable/c/7ad1997b9bc8032603df8f091761114479285769
- web https://git.kernel.org/stable/c/7ddcf4a245c1c5a91fdd9698757e3d95179ffe41
- web https://git.kernel.org/stable/c/8bfb8414e9f2ce6f5f2f0e3d0da52f2d132128e7
- web https://git.kernel.org/stable/c/b8c49ad888892ad7b77062b9c102b799a3e9b4f8
- web https://git.kernel.org/stable/c/f1acf5887c2bbaf998dc3fe32c72b7a8b84a3ddd
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31466
- web https://github.com/advisories/GHSA-j7cp-5j3g-7q5w