{"id":"CVE-2026-71261","state":"PUBLISHED","title":"dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds","description":"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.","publishedAt":"2026-08-05T12:26:09.652Z","updatedAt":"2026-08-10T11:46:24.262Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"TuranSec"},"assigner":"TuranSec","products":["mackron dr_libs"],"affected":[{"vendor":"mackron","product":"dr_libs","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"*","versionType":"custom"}],"programFiles":["dr_wav.h"]}],"references":["https://github.com/mackron/dr_libs","https://github.com/mackron/dr_libs/blob/master/dr_wav.h"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71261.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71261","state":"PUBLISHED","datePublished":"2026-08-05T12:26:09.652Z","dateUpdated":"2026-08-10T11:46:24.262Z","assignerShortName":"TuranSec","assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateReserved":"2026-08-05T12:23:34.966Z"},"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."}],"affected":[{"vendor":"mackron","product":"dr_libs","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"*","versionType":"custom"}],"programFiles":["dr_wav.h"]}],"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"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190","type":"CWE"}]}],"providerMetadata":{"shortName":"TuranSec","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","dateUpdated":"2026-08-10T11:46:24.262Z"},"credits":[{"lang":"en","value":"Alibek Baxtiyorov","type":"finder"}],"source":{"discovery":"EXTERNAL"},"datePublic":"2026-08-05T12:26:09.652Z"},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-05T15:37:07.732Z"}}]}}}