WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-125"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111162.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.5.0"
},
{
"fixed": "0.5.0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}