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CVE-2026-71261

dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Mackron
Products
Dr Libs
CVE-2026-32836

mackron / dr_libs dr_flac.h Excessive Memory Allocation in PICTURE Metadata Parsing

dr_libs dr_flac.h version 0.13.3 and earlier (fixed in commits fefced4, 4f5a4cd, and 663239a) contain an uncontrolled memory allocation vulnerability in drflac__read_and_decode_metadata() that allows attackers to trigger excessive memory allocation by supplying crafted PICTURE metadata blocks. Attackers can exploit attacker-controlled mimeLength and descriptionLength fields to cause denial of service through memory exhaustion when processing FLAC streams with metadata callbacks.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Vendors
Mackron
Products
Dr Libs
CVE-2026-29022

mackron / dr_libs dr_wav.h Heap Buffer Overflow via WAV File

dr_libs dr_wav.h version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted WAV files. Attackers can exploit a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Mackron
Products
Dr Libs