CVE-2026-71261

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-71261", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "state": "PUBLISHED", "assignerShortName": "TuranSec", "dateReserved": "2026-08-05T12:23:34.966Z", "datePublished": "2026-08-05T12:26:09.652Z", "dateUpdated": "2026-08-10T11:46:24.262Z"}, "containers": {"cna": {"title": "dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds", "descriptions": [{"lang": "en", "value": "dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.</p>"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-190", "cweId": "CWE-190", "type": "CWE"}]}], "affected": [{"vendor": "mackron", "product": "dr_libs", "programFiles": ["dr_wav.h"], "versions": [{"version": "0", "lessThanOrEqual": "*", "status": "affected", "versionType": "custom"}], "defaultStatus": "unaffected"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}}], "references": [{"url": "https://github.com/mackron/dr_libs", "tags": ["third-party-advisory"]}, {"url": "https://github.com/mackron/dr_libs/blob/master/dr_wav.h", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Alibek Baxtiyorov", "type": "finder"}], "providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-10T11:46:24.262Z"}, "source": {"discovery": "EXTERNAL"}, "datePublic": "2026-08-05T12:26:09.652Z"}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-05T15:36:58.042254Z", "id": "CVE-2026-71261", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T15:37:07.732Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-71261", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-05T15:36:58.042254Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-05T15:37:03.655Z"}}], "cna": {"title": "dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Alibek Baxtiyorov"}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "mackron", "product": "dr_libs", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "*"}], "programFiles": ["dr_wav.h"], "defaultStatus": "unaffected"}], "datePublic": "2026-08-05T12:26:09.652Z", "references": [{"url": "https://github.com/mackron/dr_libs", "tags": ["third-party-advisory"]}, {"url": "https://github.com/mackron/dr_libs/blob/master/dr_wav.h", "tags": ["third-party-advisory"]}], "descriptions": [{"lang": "en", "value": "dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.", "supportingMedia": [{"type": "text/html", "value": "<p>dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "CWE-190"}]}], "providerMetadata": {"orgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "shortName": "TuranSec", "dateUpdated": "2026-08-10T11:46:24.262Z"}}}, "cveMetadata": {"cveId": "CVE-2026-71261", "state": "PUBLISHED", "dateUpdated": "2026-08-10T11:46:24.262Z", "dateReserved": "2026-08-05T12:23:34.966Z", "assignerOrgId": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "datePublished": "2026-08-05T12:26:09.652Z", "assignerShortName": "TuranSec"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "dr_libs", "programFiles": ["dr_wav.h"], "vendor": "mackron", "versions": [{"lessThanOrEqual": "*", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly."}, {"lang": "es", "value": "dr_libs dr_wav.h (todas las versiones hasta la actual master) contiene un desbordamiento de entero en el an\u00e1lisis de metadatos de fragmentos CUE W64. En drwav__metadata_process_chunk(), una estimaci\u00f3n de capacidad de etapa 1 trunca el tama\u00f1o de fragmento W64 de 64 bits sizeInBytes a size_t antes de dividir por DRWAV_CUE_POINT_BYTES; en compilaciones de 32 bits esta truncaci\u00f3n causa que la capacidad de metadatos extra preasignada se calcule incorrectamente. La lectura subsiguiente en drwav__read_cue_to_metadata_obj() calcula el recuento real de puntos de referencia y el tama\u00f1o de asignaci\u00f3n utilizando el campo cuePointCount de precisi\u00f3n completa y controlado por el atacante sin cotejarlo con la estimaci\u00f3n de capacidad de etapa 1, y la \u00fanica aplicaci\u00f3n de l\u00edmites en la regi\u00f3n de memoria resultante (drwav__metadata_get_memory()) es un DRWAV_ASSERT, que se compila como una operaci\u00f3n nula bajo -DNDEBUG (el valor predeterminado para las compilaciones de lanzamiento). Un archivo WAV W64 manipulado puede, por lo tanto, causar un desbordamiento de b\u00fafer de pila en cualquier aplicaci\u00f3n de 32 bits que analice metadatos WAV no confiables."}], "id": "CVE-2026-71261", "lastModified": "2026-10-24T15:10:00.190", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-71261", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-05T15:36:58.042254Z", "version": "2.0.3"}}]}, "published": "2026-08-05T13:24:50.233", "references": [{"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://github.com/mackron/dr_libs"}, {"source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "url": "https://github.com/mackron/dr_libs/blob/master/dr_wav.h"}], "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "dr_libs", "source": "cna", "vendor": "mackron"}, "product": "dr_libs", "vendor": "mackron"}], "created": "2026-08-05T14:45:16.597240+00:00", "updated": "2026-08-10T21:45:03.634099+00:00", "vendors": ["mackron", "mackron$PRODUCT$dr_libs"]}