---
id: CVE-2026-107027
title: >-
  Insecure permissions in lz233 Tarnhelm v1.8.2 (versionCode 20250630) allows
  unauthorized attackers to invoke an exported component, leading to arbitrary
  data access and overwriting.
summary: >-
  Insecure permissions in lz233 Tarnhelm v1.8.2 (versionCode 20250630) allows
  unauthorized attackers to invoke an exported component, leading to arbitrary
  data access and overwriting.
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cvssSource: adp
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-11-03T15:01:47.646561Z'
exploitAvailable: true
published: '2026-10-29'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T15:01:56.989Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-107027'
references:
  - url: 'https://f-droid.org/packages/cn.ac.lz233.tarnhelm/'
  - url: 'https://github.com/lz233/Tarnhelm'
  - url: >-
      https://github.com/FFG0d/fdroid-android-advisories/blob/main/advisories/CVE-2026-107027.md
tags:
  - cve.org
  - exploit-available
epss: 0.00342
epssPercentile: 0.27841
ingestedAt: '2026-11-01T20:00:16.948Z'
---

## Overview

Insecure permissions in lz233 Tarnhelm v1.8.2 (versionCode 20250630) allows unauthorized attackers to invoke an exported component, leading to arbitrary data access and overwriting.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.