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CVE-2026-31634
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31634)
Summary
vulnerability in linux (CVE-2026-31634). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31634** 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-2026-31634" on the vendor's site.
CVE-2026-31634 (linux) — 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** (unclassified) 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。
-
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/12de9e0e0b0b7058be7dfb8a5927eb565bc25780
- web https://git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27
- web https://git.kernel.org/stable/c/45d9584e51bdd61faf1900f82666d4ea6a85da72
- web https://git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a
- web https://git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363
- web https://git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2
- web https://git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6de
- web https://git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31634
- web https://github.com/advisories/GHSA-q2xh-vwfq-mwpc