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CVE-2026-23379
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-23379)
Summary
vulnerability in linux (CVE-2026-23379). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23379** 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-2026-23379" on the vendor's site.
CVE-2026-23379 (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
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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/3912871344d6a0f1f572a7af2716968182d1e536
- web https://git.kernel.org/stable/c/62015c05878eb9ca448dca7f5a74423d10d40789
- web https://git.kernel.org/stable/c/78b8d2f55a564236435649fbd8bd6a103f30acf5
- web https://git.kernel.org/stable/c/7dbffffd5761687e168fb2f4aaa7a2c47e067efc
- web https://git.kernel.org/stable/c/a11ec75a029b3a22b5596f98ce91a3be76a86213
- web https://git.kernel.org/stable/c/a6677e23b313cd9fd03690c589c6452cb6fffb97
- web https://git.kernel.org/stable/c/abe1d5cb7fe135c0862c58db32bc29e04cf1c906
- web https://git.kernel.org/stable/c/e35626f610f3d2b7953ccddf6a77453da22b3a9e
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- web https://nvd.nist.gov/vuln/detail/CVE-2026-23379
- web https://github.com/advisories/GHSA-3p6h-g5j4-c7h7