Vulnerability Details CVE-2026-29022
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 15.3%
CVSS Severity
CVSS v3 Score 7.3
References
- https://github.com/mackron/dr_libs/commit/8a7258cc66b49387ad58cc5b81568982a3560d49
- https://github.com/mackron/dr_libs/issues/296
- https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2026-001-dr-libs-heap-overflow.md
- https://www.vulncheck.com/advisories/mackron-dr-libs-heap-buffer-overflow-via-wav-file
Products affected by CVE-2026-29022
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cpe:2.3:a:mackron:dr_libs:0.12.43
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cpe:2.3:a:mackron:dr_libs:0.13.0
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cpe:2.3:a:mackron:dr_libs:0.13.1
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cpe:2.3:a:mackron:dr_libs:0.13.17
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cpe:2.3:a:mackron:dr_libs:0.13.2
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cpe:2.3:a:mackron:dr_libs:0.13.3
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cpe:2.3:a:mackron:dr_libs:0.14.0
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cpe:2.3:a:mackron:dr_libs:0.14.1
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cpe:2.3:a:mackron:dr_libs:0.14.2
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cpe:2.3:a:mackron:dr_libs:0.14.3
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cpe:2.3:a:mackron:dr_libs:0.14.4
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cpe:2.3:a:mackron:dr_libs:0.6.40
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cpe:2.3:a:mackron:dr_libs:0.7.0
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cpe:2.3:a:mackron:dr_libs:0.7.1
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cpe:2.3:a:mackron:dr_libs:0.7.2
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cpe:2.3:a:mackron:dr_libs:0.7.3