{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72915", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-10T17:57:26.143Z", "datePublished": "2026-08-10T21:16:19.820Z", "dateUpdated": "2026-08-10T21:16:19.820Z"}, "containers": {"cna": {"title": "Mastodon: Personally-identifying information disclosure due to incorrect access control validation", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"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"}}], "references": [{"name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj"}, {"name": "https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074", "tags": ["x_refsource_MISC"], "url": "https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074"}, {"name": "https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b", "tags": ["x_refsource_MISC"], "url": "https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b"}, {"name": "https://github.com/mastodon/mastodon/releases/tag/v4.6.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/mastodon/mastodon/releases/tag/v4.6.4"}, {"name": "https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1"}], "affected": [{"vendor": "mastodon", "product": "mastodon", "versions": [{"version": ">= 4.6.0-beta.1, < 4.6.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-10T21:16:19.820Z"}, "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's current email address and last-used IP address. This issue is fixed in versions 4.6.4 and 4.7.0-beta.1."}], "source": {"advisory": "GHSA-hx34-2pfw-2qfj", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "mastodon", "vendor": "mastodon", "versions": [{"status": "affected", "version": ">= 4.6.0-beta.1, < 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's 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": "2026-08-10T22:17:10.360", "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"}]}, "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": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.6.0-beta.1,4.6.4)"}}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "mastodon", "source": "cna", "vendor": "mastodon"}, "product": "mastodon", "vendor": "joinmastodon"}], "created": "2026-08-10T23:00:07.474840+00:00", "updated": "2026-08-11T14:00:14.143692+00:00", "vendors": ["joinmastodon", "joinmastodon$PRODUCT$mastodon"]}