CVE-2026-49496

Medium

Description

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.

SeverityMedium

CVSS6.1

Exploit probability—

ProductNsa Ghidra

PublishedJun 10, 2026

First seenJun 10, 2026

Weakness typeCWE-416Use after free

How to fix

Update

nsa ghidra12.1 or later

Patches

github.com/NationalSecurityAgency/ghidra/commit/8a3018d5efcb07d2ec40bacdd6063cb6f01c8edf

Vendor advisories

github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-gqh9-2c72-wpjc

Affected products

Product	Affected versions	Fixed in
nsa ghidra	v < 12.1	12.1

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