CVE-2026-49496

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/NationalSecurityAgency/ghidra/commit/8a3018d5efcb07d2ec40bacdd6063cb6f01c8edf	Patch
https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-gqh9-2c72-wpjc	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/ghidra-heap-use-after-free-in-sleighbuilder-generatepointeradd-via-vector-reallocation	Third Party Advisory
https://github.com/NationalSecurityAgency/ghidra/security/advisories/GHSA-gqh9-2c72-wpjc	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) Ghidra anterior a la versión 12.1 contiene una vulnerabilidad de uso después de liberación en el heap en SleighBuilder::generatePointerAdd causada por la invalidación del iterador cuando PcodeCacher::allocateInstruction reasigna el vector emitido. Los atacantes pueden desencadenar corrupción de memoria descompilando binarios maliciosos a través de la API pública de C++ Sleigh::oneInstruction, afectando a los consumidores posteriores de la biblioteca SLEIGH.

Information

Published : 2026-06-10 14:16

Updated : 2026-10-26 11:10

NVD link : CVE-2026-49496

Mitre link : CVE-2026-49496

CVE.ORG link : CVE-2026-49496

JSON object : View

Products Affected

nsa

ghidra

CWE

CWE-416

Use After Free

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