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CVE-2026-57476

Estado: En análisisMedia (6.3)—

Deloitte AI Assist for Customer exposed unauthenticated API endpoints that allowed an attacker with knowledge of additional parameters to read from or inject content into the retrieval-augmented generation (RAG) corpus. On 2026-03-25, AI Assist for Customer restricted network access and enforced authentication for the previously exposed endpoints.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Deloitte — AI Assist FOR Customer

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-57476",
  "cveTags": [
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      "tags": [
        "exclusively-hosted-service"
      ],
      "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
    }
  ],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2026-57476",
          "role": "CISA Coordinator",
          "options": [
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            },
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            },
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          "timestamp": "2026-06-23T18:31:21.217805Z"
        }
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    ],
    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.8,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
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        "exploitabilityScore": 2.2
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 6.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/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",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
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      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "affectedData": [
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          "vendor": "Deloitte",
          "product": "AI Assist for Customer",
          "versions": [
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              "status": "affected",
              "version": "0",
              "lessThan": "2026-03-25",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "2026-03-25"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
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  ],
  "published": "2026-07-10T18:16:24.947",
  "references": [
    {
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-191-01.json",
      "tags": [
        "Technical Description"
      ],
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-57476",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://zerotolerance.me/advisories/assets/VU487875-deloitte-ascend-advisory.pdf",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
    },
    {
      "url": "https://zerotolerance.me/advisories/deloitte-aiassist-ascend-2026-vu487875/",
      "tags": [
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      ],
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
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  ],
  "vulnStatus": "Undergoing Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Deloitte AI Assist for Customer exposed unauthenticated API endpoints that allowed an attacker with knowledge of additional parameters to read from or inject content into the retrieval-augmented generation (RAG) corpus. On 2026-03-25, AI Assist for Customer restricted network access and enforced authentication for the previously exposed endpoints."
    }
  ],
  "lastModified": "2026-08-03T19:16:47.783",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "49F64AE4-7B80-4D5B-9010-4D0246DA1A3D",
              "versionEndExcluding": "2026-03-25"
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          "operator": "OR"
        }
      ]
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  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
}