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CVE-2026-52759— Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser

Quick assessment

Affected
Ghidra Ghidra
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NSA Ghidra是美国国家安全局（National Security Agency）的一款开源逆向工程工具。 NSA Ghidra 12.1.1之前版本存在安全漏洞，该漏洞源于Mach-O二进制解析器未验证文件大小即分配堆内存，导致攻击者通过特制二进制触发拒绝服务。

CVSS 5.5 · Medium EPSS 0.16% · P5

Affected Version Matrix 2

VendorProduct Version RangeStatus
Ghidra Ghidra < 12.1.1 affected
12.1.1 unaffected
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I. Basic Information for CVE-2026-52759

Vulnerability Information
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Vulnerability Title
Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser
Source: CVE Program / CVE List V5
Vulnerability Description
Ghidra before 12.1.1 contains an uncontrolled memory allocation vulnerability in the Mach-O binary parser that allows attackers to cause denial of service. An attacker can supply a crafted Mach-O binary with an arbitrarily large ncmds load command count value, forcing the parser to allocate excessive heap memory without validating file size, crashing the Ghidra JVM.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5
Vulnerability Title
NSA Ghidra 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NSA Ghidra是美国国家安全局（National Security Agency）的一款开源逆向工程工具。 NSA Ghidra 12.1.1之前版本存在安全漏洞，该漏洞源于Mach-O二进制解析器未验证文件大小即分配堆内存，导致攻击者通过特制二进制触发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Ghidra Ghidra 0 ~ 12.1.1 -

II. Public POCs for CVE-2026-52759

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III. Intelligence Information for CVE-2026-52759

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Vendor Advisories for CVE-2026-52759 (2)

IV. Related Vulnerabilities

Same product: Ghidra
Same weakness: CWE-789

V. Comments for CVE-2026-52759

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