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CVE-2026-43226
high
CVSS 7.5
Vulnerability in linux (CVE-2026-43226)
Summary
vulnerability in linux (CVE-2026-43226). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-43226** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-43226" on the vendor's site.
CVE-2026-43226 (linux) — CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / 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 linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 7.5/10). 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
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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。
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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/19e384a7d00d888303a8285977cdf1970c6cccd6
- web https://git.kernel.org/stable/c/81248b1eb3c5954cc1fc7b33b7c03e34d20cb8c8
- web https://git.kernel.org/stable/c/899ef00963ce76f9fc421a7d02335fe4ead6389b
- web https://git.kernel.org/stable/c/9bcd7c00691a2db9745817d5ea79262a503b135c
- web https://git.kernel.org/stable/c/9ff599a9be784a808c36765086e3db2144aa3b66
- web https://git.kernel.org/stable/c/a179ac7be8f5a650d0068040705f4cddd6ca369c
- web https://git.kernel.org/stable/c/ad22d24be635c6beab6a1fdd3f8b1f3c478d15da
- web https://git.kernel.org/stable/c/f0f729bdffb08af32e0f54521b81b8a9e0321f16
- web https://nvd.nist.gov/vuln/detail/CVE-2026-43226
- web https://github.com/advisories/GHSA-mjj8-gm8f-325h