Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser (CVE-2026-52759) | HOL Guard CVE

Medium · CVSS 6.7CVE-2026-52759

Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser

Answer in brief

CVE-2026-52759 records a Medium severity (CVSS 6.7) vulnerability in Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser. The current sources do not mark it as known exploited. The current feed maps Ghidra/Ghidra (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 10, 2026Updated Sep 24, 2026Source checked Sep 24, 2026First seen by HOL Sep 24, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.7
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Ghidra/Ghidra (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Ghidra/Ghidrageneric	>=0 <12.1.1	12.1.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Ghidra/Ghidra.
Review the reported fix. Update Ghidra/Ghidra to 12.1.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 24, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.