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CVE-2026-31428
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31428)
Summary
vulnerability in linux (CVE-2026-31428). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31428** 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-2026-31428" on the vendor's site.
CVE-2026-31428 (linux) — CWE-908 / 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-908) 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/21d8efda029948d3666b0db5afcc0d36c0984aae
- web https://git.kernel.org/stable/c/52025ebaa29f4eb4ed8bf92ce83a68f24ab7fdf7
- web https://git.kernel.org/stable/c/7eff72968161fb8ddb26113344de3b92fb7d7ef5
- web https://git.kernel.org/stable/c/7f3e5d72455936f42709116fabeca3bb216cda62
- web https://git.kernel.org/stable/c/a2f6ff3444b663d6cfa63eadd61327a18592885a
- web https://git.kernel.org/stable/c/a8365d1064ded323797c5e28e91070c52f44b76c
- web https://git.kernel.org/stable/c/c9f6c51d36482805ac3ffadb9663fe775a13e926
- web https://git.kernel.org/stable/c/fc961dd7272b5e4a462999635e44a4770d7f2482
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31428
- web https://github.com/advisories/GHSA-mp33-36gg-v9h7