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TI-2026-49929 Aliases CVE-2026-71261GHSA-cfw7-vmp5-wg69

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

Priority LOW 35CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00174 6th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
mackrondr_libsall versions—No fix listedCNA
  • dr_libs Vendormackron Affected all versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-71261
  2. 2026-10-03 Alias added: GHSA-cfw7-vmp5-wg69

References

Advisory 2

  • TI-2026-25300 mackron / miniaudio Out-of-Bounds Read in BEXT Coding History Parsing CVSS 4.0MEDIUM 5.1
  • TI-2024-27497 Heap-based buffer overflow in Miniaudio CVSS 3.1CRITICAL 9.8
  • TI-2021-13302 Miniaudio 0.10.35 has a Double free vulnerability that could cause a buffer overflow in… CVSS 3.1CRITICAL 9.8
  • TI-2021-13303 Miniaudio 0.10.35 has an integer-based buffer overflow caused by an out-of-bounds left… CVSS 3.1HIGH 7.8
  • TI-2026-25299 mackron / dr_libs dr_flac.h Excessive Memory Allocation in PICTURE Metadata Parsing CVSS 4.0MEDIUM 6.9
  • TI-2026-23180 mackron / dr_libs dr_wav.h Heap Buffer Overflow via WAV File CVSS 4.0MEDIUM 6.8
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences