{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77173", "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "state": "PUBLISHED", "assignerShortName": "hackerone", "dateReserved": "2026-08-20T15:00:00.607Z", "datePublished": "2026-10-27T16:15:34.777Z", "dateUpdated": "2026-10-27T16:15:34.777Z"}, "containers": {"cna": {"descriptions": [{"lang": "en", "value": "A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential."}], "affected": [{"defaultStatus": "unaffected", "vendor": "Nextcloud", "product": "Files Confidential", "versions": [{"version": "3.3.0", "status": "affected", "lessThanOrEqual": "5.0.0", "versionType": "semver"}]}], "references": [{"url": "https://hackerone.com/reports/3682163"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "cweId": "CWE-284", "description": "CWE-284 Improper Access Control - Generic"}]}], "credits": [{"lang": "en", "value": "XavLimSG (xavlimsg)", "type": "finder"}], "workarounds": [{"lang": "en", "value": "Change config setting: Add # to forbidden_filename_characters and rename all affected files"}], "providerMetadata": {"orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone", "dateUpdated": "2026-10-27T16:15:34.777Z"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Files Confidential", "vendor": "Nextcloud", "versions": [{"lessThanOrEqual": "5.0.0", "status": "affected", "version": "3.3.0", "versionType": "semver"}]}], "source": "support@hackerone.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A user could create a docx or odt file with a # in the filename with confidential information such as a credit card number and have it not be marked as confidential."}], "id": "CVE-2026-77173", "lastModified": "2026-10-27T17:17:03.053", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "support@hackerone.com", "type": "Secondary"}]}, "published": "2026-10-27T17:17:03.053", "references": [{"source": "support@hackerone.com", "url": "https://hackerone.com/reports/3682163"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "support@hackerone.com", "type": "Secondary"}]}

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