Vulnerability-Lookup

CVE-2026-48037 (GCVE-0-2026-48037)

Vulnerability from cvelistv5 – Published: 2026-07-24 18:44 – Updated: 2026-07-24 18:44

Title

Hulumi: AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture

Summary

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.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N

CWE

CWE-693 - Protection Mechanism Failure

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/kerberosmansour/hulumi/securit…	x_refsource_CONFIRM
https://github.com/kerberosmansour/hulumi/pull/178	x_refsource_MISC
https://github.com/kerberosmansour/hulumi/release…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
kerberosmansour	hulumi	Affected: < 1.4.0

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "hulumi",
          "vendor": "kerberosmansour",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.4.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "CWE-693: Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T18:44:23.652Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-cj8g-prcm-mfg5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-cj8g-prcm-mfg5"
        },
        {
          "name": "https://github.com/kerberosmansour/hulumi/pull/178",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kerberosmansour/hulumi/pull/178"
        },
        {
          "name": "https://github.com/kerberosmansour/hulumi/releases/tag/v1.4.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kerberosmansour/hulumi/releases/tag/v1.4.0"
        }
      ],
      "source": {
        "advisory": "GHSA-cj8g-prcm-mfg5",
        "discovery": "UNKNOWN"
      },
      "title": "Hulumi: AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-48037",
    "datePublished": "2026-07-24T18:44:23.652Z",
    "dateReserved": "2026-05-20T18:15:53.577Z",
    "dateUpdated": "2026-07-24T18:44:23.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-48037",
      "date": "2026-07-26",
      "epss": "0.00259",
      "percentile": "0.17576"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-48037\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-24T19:16:58.897\",\"lastModified\":\"2026-07-24T19:16:58.897\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"kerberosmansour\",\"product\":\"hulumi\",\"versions\":[{\"version\":\"\u003c 1.4.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"HIGH\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-693\"}]}],\"references\":[{\"url\":\"https://github.com/kerberosmansour/hulumi/pull/178\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/kerberosmansour/hulumi/releases/tag/v1.4.0\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-cj8g-prcm-mfg5\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}

GHSA-CJ8G-PRCM-MFG5

Vulnerability from github – Published: 2026-06-10 13:38 – Updated: 2026-06-10 13:38

Summary

@hulumi/baseline: AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture

Details

Affected: @hulumi/baseline < 1.4.0 — Fixed in: 1.4.0 — Severity: Medium — CWE-693 (Protection Mechanism Failure)

Summary

AccountFoundation can either create AWS detective services (GuardDuty for threat detection, Security Hub for compliance dashboards) or reuse pre-existing ones via opt-in flags. The reuse paths just imported the existing resources and reported success — they never checked whether the existing services were actually doing their job.

GuardDuty reuse. If the existing detector was suspended, or set to the slower 6-hour publishing cadence instead of the baseline 15-minute one, or otherwise misconfigured — Hulumi never noticed. The deployment succeeded with a misleadingly-positive guardDutyDetectorId output as if the baseline were active.
Security Hub reuse. Although the account import was read-only, Hulumi unconditionally created the CIS / NIST StandardsSubscription resources with default delete behaviour. Pulumi then treated those subscriptions as its own — a later pulumi destroy of the stack would call BatchDisableStandards, unsubscribing the account from CIS / NIST compliance monitoring even on accounts that had those subscriptions before Hulumi ever ran.

Impact

Consumers using AccountFoundation's reuse mode could:

ship deployments that appeared to enable a detective baseline but actually weren't (case 1), or
accidentally turn off CIS / NIST compliance monitoring on an existing account just by destroying a Hulumi stack (case 2 — no malicious intent needed; a normal stack teardown was enough).

Patches

Upgrade to @hulumi/baseline@1.4.0.

GuardDuty reuse now asserts the imported detector is ENABLED with findingPublishingFrequency: FIFTEEN_MINUTES. Wrong posture fails the deploy at preview time.
Security Hub reuse creates the CIS / NIST StandardsSubscription resources with retainOnDelete: true, so destroying a reused stack no longer unsubscribes the account.

Net-new (non-reuse) deployments are unchanged.

Workarounds

Don't reuse pre-existing detective services with AccountFoundation before upgrading. If reuse is unavoidable, manually verify detector posture out-of-band.

Resources

PR #178 (Cluster G); regression tests in packages/baseline/tests/guardduty-reuse-posture.test.ts and packages/baseline/tests/securityhub-reuse-retain.test.ts.

Severity

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@hulumi/baseline"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48037"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-693"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-10T13:38:59Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "**Affected:** `@hulumi/baseline` `\u003c 1.4.0` \u2014 **Fixed in:** `1.4.0` \u2014 **Severity:** Medium \u2014 **CWE-693 (Protection Mechanism Failure)**\n\n#### Summary\n\n`AccountFoundation` can either create AWS detective services (GuardDuty for threat detection, Security Hub for compliance dashboards) or reuse pre-existing ones via opt-in flags. The reuse paths just imported the existing resources and reported success \u2014 they never checked whether the existing services were actually doing their job.\n\n1. **GuardDuty reuse.** If the existing detector was suspended, or set to the slower 6-hour publishing cadence instead of the baseline 15-minute one, or otherwise misconfigured \u2014 Hulumi never noticed. The deployment succeeded with a misleadingly-positive `guardDutyDetectorId` output as if the baseline were active.\n2. **Security Hub reuse.** Although the account import was read-only, Hulumi unconditionally created the CIS / NIST `StandardsSubscription` resources with default delete behaviour. Pulumi then treated those subscriptions as its own \u2014 a later `pulumi destroy` of the stack would call `BatchDisableStandards`, unsubscribing the account from CIS / NIST compliance monitoring even on accounts that had those subscriptions before Hulumi ever ran.\n\n#### Impact\n\nConsumers using `AccountFoundation`\u0027s reuse mode could:\n\n- ship deployments that appeared to enable a detective baseline but actually weren\u0027t (case 1), or\n- accidentally turn off CIS / NIST compliance monitoring on an existing account just by destroying a Hulumi stack (case 2 \u2014 no malicious intent needed; a normal stack teardown was enough).\n\n#### Patches\n\nUpgrade to `@hulumi/baseline@1.4.0`.\n\n- GuardDuty reuse now asserts the imported detector is `ENABLED` with `findingPublishingFrequency: FIFTEEN_MINUTES`. Wrong posture fails the deploy at preview time.\n- Security Hub reuse creates the CIS / NIST `StandardsSubscription` resources with `retainOnDelete: true`, so destroying a reused stack no longer unsubscribes the account.\n\nNet-new (non-reuse) deployments are unchanged.\n\n#### Workarounds\n\nDon\u0027t reuse pre-existing detective services with `AccountFoundation` before upgrading. If reuse is unavoidable, manually verify detector posture out-of-band.\n\n#### Resources\n\n- [PR #178](https://github.com/kerberosmansour/hulumi/pull/178) (Cluster G); regression tests in\n  `packages/baseline/tests/guardduty-reuse-posture.test.ts` and\n  `packages/baseline/tests/securityhub-reuse-retain.test.ts`.",
  "id": "GHSA-cj8g-prcm-mfg5",
  "modified": "2026-06-10T13:38:59Z",
  "published": "2026-06-10T13:38:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/kerberosmansour/hulumi/security/advisories/GHSA-cj8g-prcm-mfg5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kerberosmansour/hulumi/pull/178"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kerberosmansour/hulumi"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "@hulumi/baseline: AccountFoundation reuse paths silently downgrade GuardDuty / Security Hub posture"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-48037 (GCVE-0-2026-48037)

GHSA-CJ8G-PRCM-MFG5

Summary

Impact

Patches

Workarounds

Resources

Tags

Sightings

Nomenclature