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CVE-2026-46273
high
CVSS 8.6
Vulnerability in linux (CVE-2026-46273)
Summary
vulnerability in linux (CVE-2026-46273). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-46273** has been found in linux.
Risk of unauthorized operations or information disclosure. CVSS score: 8.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "linux CVE-2026-46273" on the vendor's site.
CVE-2026-46273 (linux) — CWE-400 / CVSS v3 8.6
Attack vector: remote (network-reachable) / unauthenticated / 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-400) exists in linux.
📍 Affected scope
linux — .
🔥 Severity
Severity: High (CVSS 8.6/10). 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://nvd.nist.gov/vuln/detail/CVE-2026-46273
- web https://git.kernel.org/stable/c/1cdf5dbcec988d06f5f720bdf89e91073f77fa10
- web https://git.kernel.org/stable/c/3af24f0c4c31f18a4a2d927990759194832bb6e9
- web https://git.kernel.org/stable/c/82bc89fbb82d9396fb4eaee8720ea85e2e787957
- web https://git.kernel.org/stable/c/86fc64584811d43c9ccd74447de58620189d8b77
- web https://git.kernel.org/stable/c/9a5e984d7af910e46dcbed3ce77873e000a4f77d
- web https://git.kernel.org/stable/c/c1f261863e65b508f37416dfbc5c5d911c9b9233
- web https://git.kernel.org/stable/c/cc427d24ac6442ffdeafd157a63c7c5b73ed4de4
- web https://git.kernel.org/stable/c/db8012c631cb845e9ae2b4b531e17d86c9519755
- web https://github.com/advisories/GHSA-c3jf-v88j-7gvj