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CVE-2026-46023
medium
CVSS 5.5
Vulnerability in linux (CVE-2026-46023)
Summary
vulnerability in linux (CVE-2026-46023). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-46023** 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-2026-46023" on the vendor's site.
CVE-2026-46023 (linux) — CWE-190 / 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-190) 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/17a08791d428885d00e510864283a7b839792368
- web https://git.kernel.org/stable/c/35f6b3281efd44d19110574663bc17a610bc73b9
- web https://git.kernel.org/stable/c/47dad9eea75d33212d3d2cea10e7ed6a1bfc0713
- web https://git.kernel.org/stable/c/4c788c6f921b22f9b6c3f316c4a071c05683e7de
- web https://git.kernel.org/stable/c/87c99a50e0fdc68a5b9b52a94d49452cd3ff02ca
- web https://nvd.nist.gov/vuln/detail/CVE-2026-46023
- web https://github.com/advisories/GHSA-f54w-pgr9-9wv8
- web https://git.kernel.org/stable/c/249c831183fb806c8e3b14c7c4c1d2fb68cf37fb
- web https://git.kernel.org/stable/c/ae59b3025609d5a0a39cf5b2b94e2467f6231573
- web https://git.kernel.org/stable/c/e5e0ae3237584ebef510366c4cb3d5cc7c22b610