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CVE-2026-43246
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-43246)
Summary
vulnerability in linux (CVE-2026-43246). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-43246** 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-2026-43246" on the vendor's site.
CVE-2026-43246 (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
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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/0c33338514d8246280533a77091e6b6ee548c606
- web https://git.kernel.org/stable/c/377a7756914364d72550fc86ca0f404ef1d96141
- web https://git.kernel.org/stable/c/59420d5d9c46b084e21f9ea6ce79fc79ae9e414c
- web https://git.kernel.org/stable/c/9548a8bbf511a252a9848f96220c6b95c9a3b918
- web https://git.kernel.org/stable/c/cad237b6c875fbee5d353a2b289e98d240d17ec8
- web https://git.kernel.org/stable/c/ccb92def042a3636ed47f25a30bd553788e5191e
- web https://git.kernel.org/stable/c/e9a490937942f18205dac7b6b192975ef1369ae1
- web https://git.kernel.org/stable/c/fb09d8b80046216646f1a344410cfa9cfa6c6c7c
- web https://nvd.nist.gov/vuln/detail/CVE-2026-43246
- web https://github.com/advisories/GHSA-282c-48vc-5752