---
id: "CVE-2026-115503"
kind: "vulnerability"
aliases: ["CVE-2026-115503"]
title: "Ghidra: crafted zip extension archive can exhaust disk space"
severity: "medium"
cvss: 6.8
epss: 0.00121
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["ghidra", "other", "reverse-engineering", "security-research"]
not_affected_if: ["ghidra-12.2-or-later", "no-third-party-extensions"]
published_at: "2026-10-22T20:17:06+00:00"
first_seen_at: "2026-10-23T21:57:32+00:00"
updated_at: "2026-10-25T03:42:41+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115503", "first_seen_at": "2026-10-23T21:57:32+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115503", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# Ghidra: crafted zip extension archive can exhaust disk space

Ghidra before 12.2 unzips extension archives without size limits, so a crafted zip bomb expands until the disk is full. An attacker who gets a user to install that extension can make later writes by Ghidra and other applications fail.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `Ghidra` and check Help > About for the version; versions below `12.2` are affected.

## Fix

- Upgrade Ghidra to `12.2` or later.
- Only install extensions from trusted sources until upgraded.

## Timeline

- 2026-10-23T21:57:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115503
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115503

## From the sources

Ghidra before 12.2 contains an improper handling of highly compressed data vulnerability in ExtensionUtils.unzipToInstallationFolder() that allows attackers to exhaust disk space. Attackers can persuade users to install a crafted zip bomb extension archive that expands without size limits, causing later writes by Ghidra and other applications to fail.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_