{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68493", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-07-30T15:00:00.609Z", "datePublished": "2026-09-18T01:26:04.654Z", "dateUpdated": "2026-09-18T01:26:04.654Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of."}], "affected": [{"defaultStatus": "unaffected", "vendor": "Nextcloud", "product": "Server", "versions": [{"version": "32.0.0", "status": "affected", "lessThanOrEqual": "34.0.0", "versionType": "semver"}]}], "references": [{"url": "https://hackerone.com/reports/3484601"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.1, "baseSeverity": "LOW"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-639", "description": "CWE-639 Insecure Direct Object Reference (IDOR)"}]}], "credits": [{"lang": "en", "value": "Melanie (milou)", "type": "finder"}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-09-18T01:26:04.654Z"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Server", "vendor": "Nextcloud", "versions": [{"lessThanOrEqual": "34.0.0", "status": "affected", "version": "32.0.0", "versionType": "semver"}]}], "source": "support@hackerone.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of."}], "id": "CVE-2026-68493", "lastModified": "2026-09-18T02:17:07.350", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "support@hackerone.com", "type": "Secondary"}]}, "published": "2026-09-18T02:17:07.350", "references": [{"source": "support@hackerone.com", "url": "https://hackerone.com/reports/3484601"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "support@hackerone.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[32.0.0,34.0.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Server", "source": "cna", "vendor": "Nextcloud"}, "product": "server", "vendor": "nextcloud"}], "created": "2026-09-18T11:00:08.916233+00:00", "updated": "2026-09-18T11:00:08.916259+00:00", "vendors": ["nextcloud", "nextcloud$PRODUCT$server"]}