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CVE-2026-23286
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-23286)
Summary
vulnerability in linux (CVE-2026-23286). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23286** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-23286" on the vendor's site.
CVE-2026-23286 (linux) — CWE-476 / CVSS v3 5.5
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-476) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: Medium (CVSS 5.5/10). 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
-
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/101bacb303e89dc2e0640ae6a5e0fb97c4eb45bb
- web https://git.kernel.org/stable/c/2d9f57ea29a1f1772373b98a509b44d49fda609e
- web https://git.kernel.org/stable/c/30c9744a989feb22cfbb84170eb0e038a7a2c1da
- web https://git.kernel.org/stable/c/5f1cfea7921f5c126a441d973690eeba52677b64
- web https://git.kernel.org/stable/c/622062f24644b4536d3f437e0cf7a8c4bb421665
- web https://git.kernel.org/stable/c/7ea92ab075d809ec8a96669a5ecf00f752057875
- web https://git.kernel.org/stable/c/8aff65a82b6389ec674d46e5b3d3ae6f07db5e3e
- web https://git.kernel.org/stable/c/e9665986eb127290ceb535bd5d04d7a84265d94f
- web https://nvd.nist.gov/vuln/detail/CVE-2026-23286
- web https://github.com/advisories/GHSA-6rj2-xg9p-3jj4