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CVE-2026-31615
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31615)
Summary
vulnerability in linux (CVE-2026-31615). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31615** 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-2026-31615" on the vendor's site.
CVE-2026-31615 (linux) — CWE-476 / 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** (CWE-476) 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/1b2bfedccc4fb8c9572e1ea464f905424c91de2a
- web https://git.kernel.org/stable/c/360aa6e71870a175a6d86af905be2ca171639eb3
- web https://git.kernel.org/stable/c/37f430b2240655e6b0199a92aa1057e4d621be51
- web https://git.kernel.org/stable/c/44216e3dd4455b798899b50eedb0ec3831dff8e0
- web https://git.kernel.org/stable/c/7caaf76207f50c77abfd788380e19b2c23a94415
- web https://git.kernel.org/stable/c/adb8014599fdf0818d3d93f1f74e06cd0bdec08d
- web https://git.kernel.org/stable/c/c4e5ae6db2328d2d9ed55d3005a36c13faab0752
- web https://git.kernel.org/stable/c/e3d42598f2995cdc07b7779874e7c5f8a1b773db
- web https://git.kernel.org/stable/c/f880aac8a57ebd92abfa685d45424b2998ac1059
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31615
- web https://github.com/advisories/GHSA-gggw-8cq2-45cp