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CVE-2026-23229
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-23229)
Summary
vulnerability in linux (CVE-2026-23229). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23229** 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-2026-23229" on the vendor's site.
CVE-2026-23229 (linux) — 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** (unclassified) 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。
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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/49c57c6c108931a914ed94e3c0ddb974008260a3
- web https://git.kernel.org/stable/c/552475d0b6cece73a52c0fa5faa0ce45e99df74b
- web https://git.kernel.org/stable/c/8ee8ccfd60bf17cbdab91069d324b5302f4f3a30
- web https://git.kernel.org/stable/c/b505047ffc8057555900d2d3a005d033e6967382
- web https://git.kernel.org/stable/c/c0a0ded3bb7fd45f720faa48449a930153257d3a
- web https://git.kernel.org/stable/c/c9e594194795c86ca753ad6ed64c2762e9309d0d
- web https://git.kernel.org/stable/c/d6f0d586808689963e58fd739bed626ff5013b24
- web https://git.kernel.org/stable/c/e69a7b0a71b6561b3b6459f1fded8d589f2e8ac2
- web https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- web https://nvd.nist.gov/vuln/detail/CVE-2026-23229
- web https://github.com/advisories/GHSA-j87r-wgfm-7fjj