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CVE-2026-31629
high
CVSS 8.8
Vulnerability in linux (CVE-2026-31629)
Summary
vulnerability in linux (CVE-2026-31629). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31629** has been found in linux.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-31629" on the vendor's site.
CVE-2026-31629 (linux) — CWE-667 / CVSS v3 8.8
Attack vector: adjacent-network / 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** (CWE-667) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover
🔧 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/0eb1263a3b8c36418c9ba295c9ab3abed664edbf
- web https://git.kernel.org/stable/c/2b5dd4632966c39da6ba74dbc8689b309065e82c
- web https://git.kernel.org/stable/c/665315df9c3486cb213fc44d83cc8bcd47fe0d26
- web https://git.kernel.org/stable/c/796e0cac058252d0ad34ebe288e6f7979b5fc9b2
- web https://git.kernel.org/stable/c/8977fad2b3c6eefd414131168d597c5d1d5e1abf
- web https://git.kernel.org/stable/c/9b49e2a4b8219a2fc5cebf94f4ec34e509aff8a6
- web https://git.kernel.org/stable/c/aba4712e8f0381cd5d196534ce2ad082626a5ab6
- web https://git.kernel.org/stable/c/b2a23529593d011fb433a3d711fc597ed6a6bd2f
- web https://git.kernel.org/stable/c/ff3d9e8f7244293e303f7b6ef70774291c7c27e9
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31629
- web https://github.com/advisories/GHSA-cfpg-q83x-6923