Integer overflow in Mackron Dr_libs

CVE-2026-71261

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 bef…

Vulnerability class: Integer Overflow

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-71261?
CVE-2026-71261 is a high-severity vulnerability in Mackron Dr_libs, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2026-08-05.
How severe is CVE-2026-71261?
High severity. CVSS v3 base score is 7.8 out of 10.