FKIE_CVE-2026-72915

Vulnerability from fkie_nvd - Published: 2026-08-10 22:17 - Updated: 2026-08-11 17:19
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Mastodon is a free, open-source social network server based on ActivityPub. From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collections_controller.rb to access personally identifying information about another local user in a collection because the controller used the general collection policy instead of the admin collection policy namespace. The exposed data included the other user's current email address and last-used IP address. This issue is fixed in versions 4.6.4 and 4.7.0-beta.1.
References
security-advisories@github.comhttps://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074
security-advisories@github.comhttps://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b
security-advisories@github.comhttps://github.com/mastodon/mastodon/releases/tag/v4.6.4
security-advisories@github.comhttps://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1
security-advisories@github.comhttps://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "mastodon",
          "vendor": "mastodon",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.6.0-beta.1, \u003c 4.6.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mastodon is a free, open-source social network server based on ActivityPub. From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collections_controller.rb to access personally identifying information about another local user in a collection because the controller used the general collection policy instead of the admin collection policy namespace. The exposed data included the other user\u0027s current email address and last-used IP address. This issue is fixed in versions 4.6.4 and 4.7.0-beta.1."
    }
  ],
  "id": "CVE-2026-72915",
  "lastModified": "2026-08-11T17:19:14.203",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-72915",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-11T17:08:55.302583Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-10T22:17:10.360",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/mastodon/mastodon/releases/tag/v4.6.4"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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