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CVE-2026-31613
high
CVSS 8.1
Out-of-Bounds Read in linux (CVE-2026-31613)
Summary
vulnerability in linux (CVE-2026-31613). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31613** has been found in linux.
Confidential information can be exposed externally. CVSS score: 8.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-31613" on the vendor's site.
CVE-2026-31613 (linux) — CWE-125 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated
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
**out-of-bounds read** (CWE-125) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 8.1/10). Confidential information can be exposed externally
🔧 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
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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/3df690bba28edec865cf7190be10708ad0ddd67e
- web https://git.kernel.org/stable/c/781902e069f4ecb6c3b83502f181972c1446110a
- web https://git.kernel.org/stable/c/a66ef2e7ed837325c5600f8617d5ee0a0a149fdd
- web https://git.kernel.org/stable/c/e0dd90d14cbbf318157ea8e3fb62ee68a28655ed
- web https://git.kernel.org/stable/c/043834e72337ee7b4e9685859888623ba1504ac7
- web https://git.kernel.org/stable/c/20ac98f0eb6047edb73c9a27af782bdde08b3757
- web https://git.kernel.org/stable/c/d65a64755a3df68a2fd19d2a81395e9f723aca23
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31613
- web https://github.com/advisories/GHSA-3w37-m4pg-q585