---
id: "CVE-2026-115396"
kind: "vulnerability"
aliases: ["CVE-2026-115396"]
title: "Ghidra: crafted theme ZIP can fill disk and break later writes"
severity: "medium"
cvss: 6.8
epss: 0.00121
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["developer-workstations", "ghidra", "other", "reverse-engineering"]
not_affected_if: ["ghidra-12.2-or-later", "no-theme-imports"]
published_at: "2026-10-22T19:17:47+00:00"
first_seen_at: "2026-10-23T21:57:31+00:00"
updated_at: "2026-10-25T03:42:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115396", "first_seen_at": "2026-10-23T21:57:31+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-115396", "first_seen_at": "2026-10-24T07:15:51+00:00"}]
---

# Ghidra: crafted theme ZIP can fill disk and break later writes

Ghidra 10.3 before 12.2 does not limit decompressed size or compression ratio when ThemeReader.processIconFile() reads icon entries from a theme ZIP. A user who imports a crafted theme can have the icon entries expand until they fill the host filesystem, which then makes later writes fail.

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

## How to check

- Run `ghidra --version` or check the installed Ghidra version in the About dialog and see whether it is `10.3` through `12.1`.
- unknown

## Fix

- Upgrade Ghidra to `12.2` or later.
- Only import theme files from trusted sources until the upgrade is done.

## Timeline

- 2026-10-23T21:57:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115396
- 2026-10-24T07:15:51+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-115396

## From the sources

Ghidra 10.3 before 12.2 contains an improper handling of highly compressed data vulnerability in ThemeReader.processIconFile() that fails to limit decompressed size or compression ratio. Attackers can persuade a user to import a crafted theme ZIP whose icon entries expand to fill the host filesystem, causing later writes 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_