CVE-2026-8793

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8793", "assignerOrgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "state": "PUBLISHED", "assignerShortName": "PaperCut", "dateReserved": "2026-05-17T23:10:16.657Z", "datePublished": "2026-08-03T06:58:00.359Z", "dateUpdated": "2026-08-03T14:32:59.274Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "shortName": "PaperCut", "dateUpdated": "2026-08-03T06:58:00.359Z"}, "title": "PaperCut NG/MF: Insufficient brute-force protection", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-307", "description": "CWE-307 Improper restriction of excessive authentication attempts", "type": "CWE"}]}], "affected": [{"vendor": "PaperCut", "product": "PaperCut NG/MF", "versions": [{"status": "affected", "version": "0", "lessThan": "26.0.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.<br>"}]}], "references": [{"url": "https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Vivien Lebas", "type": "reporter"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-03T14:32:09.133603Z", "id": "CVE-2026-8793", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-03T14:32:59.274Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-8793", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-03T14:32:09.133603Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-03T14:32:52.586Z"}}], "cna": {"title": "PaperCut NG/MF: Insufficient brute-force protection", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "value": "Vivien Lebas"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "PaperCut", "product": "PaperCut NG/MF", "versions": [{"status": "affected", "version": "0", "lessThan": "26.0.3", "versionType": "semver"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/"}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.", "supportingMedia": [{"type": "text/html", "value": "PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations.<br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-307", "description": "CWE-307 Improper restriction of excessive authentication attempts"}]}], "providerMetadata": {"orgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "shortName": "PaperCut", "dateUpdated": "2026-08-03T06:58:00.359Z"}}}, "cveMetadata": {"cveId": "CVE-2026-8793", "state": "PUBLISHED", "dateUpdated": "2026-08-03T14:32:59.274Z", "dateReserved": "2026-05-17T23:10:16.657Z", "assignerOrgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "datePublished": "2026-08-03T06:58:00.359Z", "assignerShortName": "PaperCut"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "PaperCut NG/MF", "vendor": "PaperCut", "versions": [{"lessThan": "26.0.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering account lockout or rate-limiting mechanisms in some configurations."}, {"lang": "es", "value": "PaperCut NG/MF no restringe adecuadamente los intentos excesivos de autenticaci\u00f3n dentro de su componente de inicio de sesi\u00f3n. Un atacante remoto no autenticado puede explotar esta vulnerabilidad para realizar ataques de fuerza bruta o de relleno de credenciales sin restricciones, sin activar mecanismos de bloqueo de cuenta o de limitaci\u00f3n de velocidad en algunas configuraciones."}], "id": "CVE-2026-8793", "lastModified": "2026-10-23T22:10:00.160", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-8793", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-03T14:32:09.133603Z", "version": "2.0.3"}}]}, "published": "2026-08-03T08:17:21.097", "references": [{"source": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "url": "https://www.papercut.com/kb/Main/papercut-ng-mf-security-bulletin-3-aug-2026/"}], "sourceIdentifier": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-307"}], "source": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.0.3)"}}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 93.0, "source": "matching"}]}, "original": {"product": "PaperCut NG/MF", "source": "cna", "vendor": "PaperCut"}, "product": "papercut_mf", "vendor": "papercut"}], "created": "2026-08-03T15:00:15.087262+00:00", "updated": "2026-08-04T10:45:05.518664+00:00", "vendors": ["papercut", "papercut$PRODUCT$papercut_mf"]}