Ghidra versions through 12.1.4 contain a heap use-after-free vulnerability in the decompiler's Funcdata::opInsertAfter function caused by stale INDIRECT effect-op references. Attackers can craft a malicious binary with a specific x86-64 sequence that triggers the vulnerability during decompilation, causing the decompile helper process to crash and denying service to analysts and automated analysis pipelines.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-416"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100503.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "12.1.4"
}
],
"source": [
"DESCRIPTION",
"REFERENCES"
]
}