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CVE-2026-31619
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31619)
Summary
vulnerability in linux (CVE-2026-31619). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31619** 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-2026-31619" on the vendor's site.
CVE-2026-31619 (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。
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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/07704bbf36f57e4379e4cadf96410dab14621e3b
- web https://git.kernel.org/stable/c/183aa0de0f680496b9feb85c9d182681ad4600dd
- web https://git.kernel.org/stable/c/327f8e730e3c65ec97df9d3b07de66aeb3dc932d
- web https://git.kernel.org/stable/c/62fcb273fbee5b2a0e7ed41cc914c8d7d1a5d285
- web https://git.kernel.org/stable/c/67cfd14074cdafab5de3f7cfc0952c1a9b653e5d
- web https://git.kernel.org/stable/c/682d8accf0d83a871e8c327b95c81f53902c922b
- web https://git.kernel.org/stable/c/cc624b3d2be13297100539b64ad950695188e046
- web https://git.kernel.org/stable/c/e103f98f6615ed2934e9cf340654f0cad9eb8a8a
- web https://git.kernel.org/stable/c/f856f4b6efd51be7950e4b84c06cd961961ca41c
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31619
- web https://github.com/advisories/GHSA-c947-xgxx-fj67