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CVE-2026-31605
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-31605)
Summary
vulnerability in linux (CVE-2026-31605). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31605** 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-2026-31605" on the vendor's site.
CVE-2026-31605 (linux) — CWE-369 / 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-369) 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/03797cdee38ef19c87785622d423aabaafb71c5f
- web https://git.kernel.org/stable/c/6de048d78f3029744778b7a2891745f3ca7c209a
- web https://git.kernel.org/stable/c/828ce54b27de93bd9c67991bca5a2c76c76742de
- web https://git.kernel.org/stable/c/9981de9fb5ae0d3d6bc5ff5ca63350c2a3cdc564
- web https://git.kernel.org/stable/c/a31e4518bec70333a0a98f2946a12b53b45fe5b9
- web https://git.kernel.org/stable/c/afaaaa38579f1252bb42b145f6e88a955c4f73f3
- web https://git.kernel.org/stable/c/cccbf9b7fdab48ce4feb69c24f7f928aa8e4e8b8
- web https://git.kernel.org/stable/c/cce24f70090e0decb597b88bc52e8ef8efed6105
- web https://git.kernel.org/stable/c/fd50ab7dd4ee5bbb4aebffa76ae18484b03a8ea5
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31605
- web https://github.com/advisories/GHSA-5j7x-34ch-2fxf