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FKIE_CVE-2026-77125

Vulnerability from fkie_nvd - Published: 2026-09-02 18:21 - Updated: 2026-09-08 19:20
Summary
A vulnerability was identified in Sonatype Nexus Repository 3 in which two blobstore group management REST API endpoints did not correctly enforce the intended authorization check. A user granted only the nexus:blobstores:create permission could invoke these endpoints to convert an existing blobstore into a group blobstore, an action that should require the nexus:blobstores:update permission instead. This could result in unauthorized modification of blobstore configuration without administrator approval. The nexus:blobstores:create permission is a named permission that must be explicitly granted by an administrator; it is not held by default.
Impacted products
Vendor Product Version

{
  "affected": [
    {
      "affectedData": [
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            "cpe:2.3:a:sonatype:nexus_repository_manager:3.92.2:*:*:*:*:*:*:*",
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            "cpe:2.3:a:sonatype:nexus_repository_manager:3.95.3:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "Nexus Repository 3",
          "vendor": "Sonatype",
          "versions": [
            {
              "lessThan": "3.96.0",
              "status": "affected",
              "version": "3.19.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "103e4ec9-0a87-450b-af77-479448ddef11"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was identified in Sonatype Nexus Repository 3 in which two blobstore group management REST API endpoints did not correctly enforce the intended authorization check. A user granted only the nexus:blobstores:create permission could invoke these endpoints to convert an existing blobstore into a group blobstore, an action that should require the nexus:blobstores:update permission instead. This could result in unauthorized modification of blobstore configuration without administrator approval. The nexus:blobstores:create permission is a named permission that must be explicitly granted by an administrator; it is not held by default."
    }
  ],
  "id": "CVE-2026-77125",
  "lastModified": "2026-09-08T19:20:25.117",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "103e4ec9-0a87-450b-af77-479448ddef11",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-77125",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-02T17:56:01.354547Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-02T18:21:25.023",
  "references": [
    {
      "source": "103e4ec9-0a87-450b-af77-479448ddef11",
      "url": "https://help.sonatype.com/en/sonatype-nexus-repository-3-96-0-release-notes.html"
    },
    {
      "source": "103e4ec9-0a87-450b-af77-479448ddef11",
      "url": "https://support.sonatype.com/hc/en-us/articles/54643114434451/"
    }
  ],
  "sourceIdentifier": "103e4ec9-0a87-450b-af77-479448ddef11",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "103e4ec9-0a87-450b-af77-479448ddef11",
      "type": "Secondary"
    }
  ]
}



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