CVE-2026-71261CWE-190

CVE-2026-71261

High · published August 5, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
6.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00174 · 6.5th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-08-05T17:24Z
References (2)
https://github.com/mackron/dr_libs · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://github.com/mackron/dr_libs/blob/master/dr_wav.h · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
EPSS history
Timeline
  • 05 AUG 12:26Z
    dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds
    cvelistv5