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CVE-2026-50260 high CVSS 7.8

Use-After-Free in privilege-escalation (CVE-2026-50260)

Summary

vulnerability in privilege-escalation (CVE-2026-50260). Successful exploitation can lead to full system takeover.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **CVE-2026-50260** has been found in privilege-escalation. Successful exploitation can lead to full system takeover. CVSS score: 7.8/10. What to do: apply the vendor's official patched release. If unsure, ask your IT team or search "privilege-escalation CVE-2026-50260" on the vendor's site.
CVE-2026-50260 (privilege-escalation) — CWE-416 / CVSS v3 7.8 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
**use-after-free** (CWE-416) exists in privilege-escalation.
📍 Affected scope
privilege-escalation — .
🔥 Severity
Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover
🔧 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 'privilege-escalation' .` 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

  1. 1
    Identify exposure identify 
    grep -r 'privilege-escalation' . | 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 `privilege-escalation` を grep し、稼働しているサービス・バージョンを把握する。

  2. 7
    Post-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

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