Heap Out-of-Bounds Read in gbsplay Product by GitHub
CVE-2026-116727

4.8MEDIUM

Key Information:

Vendor

Mmitch

Status
Gbsplay
Vendor
CVE Published:
26 October 2026

What is CVE-2026-116727?

The gbsplay application, up to version 0.0.103, contains a vulnerability in the vgm_open() function within gbs.c, leading to a heap out-of-bounds read. This occurs when the application processes a crafted VGM file that has wait opcodes without a proper 0x66 terminator. The lack of bounds checks allows attackers to read beyond the intended heap buffer, potentially causing a crash of the player. Proper patching and review of VGM files are essential to mitigate this risk.

Affected Version(s)

gbsplay 0 <= 0.0.103

References

https://github.com/mmitch/gbsplay/issues/201
issue-tracking
https://github.com/mmitch/gbsplay
product
https://github.com/mmitch/gbsplay/commit/91b1f6df0abd3914...
patch

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

HaiND from the Post and Telecommunication Institute of Technology
.