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CVE-2026-31598
high
CVSS 7.5
Vulnerability in linux (CVE-2026-31598)
Summary
vulnerability in linux (CVE-2026-31598). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31598** 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-2026-31598" on the vendor's site.
CVE-2026-31598 (linux) — CWE-667 / 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** (CWE-667) 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/297d8d7bb6a2bf133d3a3636edbdf94101cbd719
- web https://git.kernel.org/stable/c/2b884d52273c60c298bd570163e8053657bbaff6
- web https://git.kernel.org/stable/c/32630dee18c6bb2175c8a865a474749492eaf19c
- web https://git.kernel.org/stable/c/4b80b5a838a32437f2cae0662578bac216a2c51a
- web https://git.kernel.org/stable/c/93f35419eb84d58820040642cb6e7528fe4aba7a
- web https://git.kernel.org/stable/c/b02da26a992db0c0e2559acbda0fc48d4a2fd337
- web https://git.kernel.org/stable/c/bc0fb5c7d54c78be43a536df0e20dee32adb27d3
- web https://git.kernel.org/stable/c/e049f7a9bd80b7319590789ea5e1c523d6339d91
- web https://git.kernel.org/stable/c/f9fb1a7b635849322e1d7b7b6b26389778ec8e82
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31598
- web https://github.com/advisories/GHSA-cqwh-r98h-2279