← Back
CVE-2026-23236
high
CVSS 7.3
Vulnerability in linux (CVE-2026-23236)
Summary
vulnerability in linux (CVE-2026-23236). Data can be tampered with by attackers.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23236** has been found in linux.
Data can be tampered with by attackers. CVSS score: 7.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-23236" on the vendor's site.
CVE-2026-23236 (linux) — CVSS v3 7.3
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: High (CVSS 7.3/10). Data can be tampered with by attackers
🔧 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
- advisory https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23236.json
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-23236
- package https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- web https://git.kernel.org/stable/c/061cfeb560aa3ddc174153dbe5be9d0b55eb7248
- web https://git.kernel.org/stable/c/0634e8d650993602fc5b389ff7ac525f6542e141
- web https://git.kernel.org/stable/c/120adae7b42faa641179270c067864544a50ab69
- web https://git.kernel.org/stable/c/1c008ad0f0d1c1523902b9cdb08e404129677bfc
- web https://git.kernel.org/stable/c/52917e265aa5f848212f60fc50fc504d8ef12866
- web https://git.kernel.org/stable/c/6167af934f956d3ae1e06d61f45cd0d1004bbe1a
- web https://git.kernel.org/stable/c/a0321e6e58facb39fe191caa0e52ed9aab6a48fe
- web https://git.kernel.org/stable/c/f1e91bd4efeae48b0f42caed7e8ce2e3a0d05b02
- web https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- web https://github.com/advisories/GHSA-6c9m-6m34-wg94