CVE-2026-49496: Nsa Ghidra

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Ghidra before 12.1 contains a heap-use-after-free vulnerability in SleighBuilder::generatePointerAdd caused by iterator invalidation when PcodeCacher::allocateInstruction reallocates the issued vector. Attackers can trigger memory corruption by decompiling malicious binaries through the public Sleigh::oneInstruction C++ API, affecting downstream SLEIGH library consumers.

Affected products

• Nsa Ghidra: before 12.1 (fixed in 12.1)

Published 2026-06-10. Last modified 2026-07-14.