← Back
CVE-2026-31616
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31616)
Summary
vulnerability in linux (CVE-2026-31616). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31616** 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-2026-31616" on the vendor's site.
CVE-2026-31616 (linux) — CWE-401 / 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-401) 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/3d7f7e0c842242878c24b2facff8d6eda23ee1e9
- web https://git.kernel.org/stable/c/4e476c25bfcab0535ba7c76a903ae77ca8747711
- web https://git.kernel.org/stable/c/66f7471c4042e4eb300e30b5b9d87d1406862673
- web https://git.kernel.org/stable/c/7424f0287da73d3d8c5fa5e9d25d26fce762708e
- web https://git.kernel.org/stable/c/9ceff1251904901b0b4e5fe6350fcaffa368ce83
- web https://git.kernel.org/stable/c/b5ec49fa198bd08967a3102bd41f53ccadce72c9
- web https://git.kernel.org/stable/c/bd44ce09b9b569f49ed13e2d87d23d853fc7d6a7
- web https://git.kernel.org/stable/c/c088d5dd2fffb4de1fb8e7f57751c8b82942180a
- web https://git.kernel.org/stable/c/c9315ce9da3632c591666a29de82d3e92d46bec1
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31616
- web https://github.com/advisories/GHSA-h96r-xqwg-w67w