Vulnerability in vantage6 (CVE-2026-54445)
Summary
Vulnerability in vantage6 (CVE-2026-54445). Risk of unauthorized operations or information disclosure. Exploitable via root. Mitigation: upgrade to 5.0.0 or later.
Original description
The description as published by the source.
vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username root and password root. This is not ideal because attackers know that almost all vantage6 servers have a user with username root that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the root user after it has been used to create other users.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-54445 has been found in vantage6.
Attackers can target a specific entry point like root over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade vantage6 to 5.0.0 or later.
If unsure, ask your IT team or search "vantage6 CVE-2026-54445" on the vendor's site.
CVE-2026-54445 (vantage6) — CWE-1393
Attack surface: root
Patched: 5.0.0 — apply immediately
Workaround: It is possible to delete the root user after it has been used to create other users
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.
A vulnerability (CWE-1393) exists in vantage6. Attackers reach the vulnerable code path via root.
Check the vendor advisory for the affected versions of vantage6. Attack surface: root.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 5.0.0.
Workaround: It is possible to delete the root user after it has been used to create other users
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'vantage6' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'vantage6' . | 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
vantage6を grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
It is possible to delete the `root` user after it has been used to create other usersパッチが適用されるまでの応急処置として、It is possible to delete the
rootuser after it has been used to create other users を実施。回避策の副作用 (機能低下) を確認した上で。 -
3Apply patch patch
Upgrade vantage6 to 5.0.0ステージング環境で 5.0.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
4Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- report github.com
- web github.com
- web github.com