CVE-2026-18806

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18806", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-08-04T12:12:44.857Z", "datePublished": "2026-08-04T12:38:14.831Z", "dateUpdated": "2026-08-10T11:33:53.118Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-08-10T11:33:53.118Z"}, "title": "Arbitrary Block Device Write via Missing Validation in T\u00dcB\u0130TAK B\u0130LGEM's pardus-image-writer", "datePublic": "2026-08-04T12:26:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-73", "description": "CWE-73 External control of file name or path", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-207", "descriptions": [{"lang": "en", "value": "CAPEC-207 Removing Important Client Functionality"}]}], "affected": [{"vendor": "T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute", "product": "pardus-image-writer", "versions": [{"status": "affected", "version": "0", "lessThan": "0.9.0", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "External control of file name or path vulnerability in T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.\n\nThis issue affects pardus-image-writer: before 0.9.0.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "External control of file name or path vulnerability in T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.<p>This issue affects pardus-image-writer: before 0.9.0.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0740", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Emirhan Y\u00dcCEL", "type": "finder"}], "source": {"defect": ["TR-26-0740"], "advisory": "TR-26-0740", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-04T15:37:37.919419Z", "id": "CVE-2026-18806", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-08-04T15:37:47.429Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-18806", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-04T15:37:37.919419Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-04T15:37:43.214Z"}}], "cna": {"title": "Arbitrary Block Device Write via Missing Validation in T\u00dcB\u0130TAK B\u0130LGEM's pardus-image-writer", "source": {"defect": ["TR-26-0740"], "advisory": "TR-26-0740", "discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Emirhan Y\u00dcCEL"}], "impacts": [{"capecId": "CAPEC-207", "descriptions": [{"lang": "en", "value": "CAPEC-207 Removing Important Client Functionality"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute", "product": "pardus-image-writer", "versions": [{"status": "affected", "version": "0", "lessThan": "0.9.0", "versionType": "custom"}], "defaultStatus": "unaffected"}], "datePublic": "2026-08-04T12:26:00.000Z", "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0740", "tags": ["government-resource"]}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "External control of file name or path vulnerability in T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.\n\nThis issue affects pardus-image-writer: before 0.9.0.", "supportingMedia": [{"type": "text/html", "value": "External control of file name or path vulnerability in T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.<p>This issue affects pardus-image-writer: before 0.9.0.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-73", "description": "CWE-73 External control of file name or path"}]}], "providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-08-10T11:33:53.118Z"}}}, "cveMetadata": {"cveId": "CVE-2026-18806", "state": "PUBLISHED", "dateUpdated": "2026-08-10T11:33:53.118Z", "dateReserved": "2026-08-04T12:12:44.857Z", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "datePublished": "2026-08-04T12:38:14.831Z", "assignerShortName": "TR-CERT"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "pardus-image-writer", "vendor": "T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute", "versions": [{"lessThan": "0.9.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "iletisim@usom.gov.tr"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "External control of file name or path vulnerability in T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute pardus-image-writer allows Removing Important Client Functionality.\n\nThis issue affects pardus-image-writer: before 0.9.0."}, {"lang": "es", "value": "Una vulnerabilidad de control externo del nombre de archivo o ruta en el pardus-image-writer de T\u00dcB?TAK B?LGEM Software Technologies Research Institute permite la eliminaci\u00f3n de funcionalidad importante del cliente.\n\nEste problema afecta a pardus-image-writer: antes de 1.0.4."}], "id": "CVE-2026-18806", "lastModified": "2026-10-23T23:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "iletisim@usom.gov.tr", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18806", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-04T15:37:37.919419Z", "version": "2.0.3"}}]}, "published": "2026-08-04T13:17:36.540", "references": [{"source": "iletisim@usom.gov.tr", "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0740"}], "sourceIdentifier": "iletisim@usom.gov.tr", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-73"}], "source": "iletisim@usom.gov.tr", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.0.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "pardus-image-writer", "source": "cna", "vendor": "T\u00dcB\u0130TAK B\u0130LGEM Software Technologies Research Institute"}, "product": "pardus-image-writer", "vendor": "tubitak_bilgem_software_technologies_research_institute"}], "created": "2026-08-04T20:00:05.174600+00:00", "updated": "2026-08-10T13:00:04.717804+00:00", "vendors": ["tubitak_bilgem_software_technologies_research_institute", "tubitak_bilgem_software_technologies_research_institute$PRODUCT$pardus-image-writer"]}