Vulnerability in @hulumi/baseline (CVE-2026-48037)
Summary
Vulnerability in @hulumi/baseline (CVE-2026-48037). Risk of unauthorized operations or information disclosure. Exploitable via AccountFoundation. Mitigation: upgrade to 1.4.0 or later.
Original description
The description as published by the source.
Hulumi is an open-source toolkit that ships secure-by-default cloud and platform infrastructure components for Pulumi. Prior to version 1.4.0, AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture. This issue has been patched in version 1.4.0.
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-2026-48037 has been found in @hulumi/baseline.
Attackers can target a specific entry point like AccountFoundation over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade @hulumi/baseline to 1.4.0 or later.
If unsure, ask your IT team or search "@hulumi/baseline CVE-2026-48037" on the vendor's site.
CVE-2026-48037 (@hulumi/baseline) — CWE-693
Attack surface: AccountFoundation / guardDutyDetectorId / StandardsSubscription / BatchDisableStandards
Patched: 1.4.0 — apply immediately
Workaround: Don't reuse pre-existing detective services with AccountFoundation before upgrading.
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-693) exists in @hulumi/baseline. Attackers reach the vulnerable code path via AccountFoundation.
Check the vendor advisory for the affected versions of @hulumi/baseline. Attack surface: AccountFoundation / guardDutyDetectorId / StandardsSubscription / BatchDisableStandards.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 1.4.0.
Workaround: Don't reuse pre-existing detective services with AccountFoundation before upgrading.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r '@hulumi/baseline' . 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 '@hulumi/baseline' . | 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
@hulumi/baseline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
Don't reuse pre-existing detective services with `AccountFoundation` before upgrading.パッチが適用されるまでの応急処置として、Don't reuse pre-existing detective services with
AccountFoundationbefore upgrading. 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 @hulumi/baseline to 1.4.0ステージング環境で 1.4.0 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 github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- web github.com
- web github.com