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CVE-2026-31676
high
CVSS 7.5
Vulnerability in linux (CVE-2026-31676)
Summary
vulnerability in linux (CVE-2026-31676). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31676** 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-2026-31676" on the vendor's site.
CVE-2026-31676 (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/03fd2ef73cb4ffd0af100a95b634af54f474414e
- web https://git.kernel.org/stable/c/0afdfd4941c1b60a1f5c361760daa970edca60cd
- web https://git.kernel.org/stable/c/29b44d904dceb832be880def08b8cb17a0aba91c
- web https://git.kernel.org/stable/c/6c3a0fbdafef8316e34ae22333e317a341e737cd
- web https://git.kernel.org/stable/c/a1a8efde03a40b6c658d580e96644d9b9a2a0d3a
- web https://git.kernel.org/stable/c/a6bcf8010af093fe04f7100562e9542ab7882585
- web https://git.kernel.org/stable/c/c43ffdcfdbb5567b1f143556df8a04b4eeea041c
- web https://git.kernel.org/stable/c/d0035e634dae83237ab7f5681eb52b2f65d0ceb8
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31676
- web https://github.com/advisories/GHSA-cpfq-5p4h-49pp