CVE-2026-100503: Nsa Ghidra

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Nsa Ghidra: up to and including 12.1.4

Published 2026-09-26. Last modified 2026-10-08.