---
id: "CVE-2026-107019"
kind: "vulnerability"
aliases: ["CVE-2026-107019"]
title: "Arbeitszeiterfassung2 Android app: forged holiday entries via crafted ICS import"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["android", "arbeitszeiterfassung2", "package"]
not_affected_if: ["other-versions"]
published_at: "2026-10-29T15:17:15+00:00"
first_seen_at: "2026-10-29T15:25:38+00:00"
updated_at: "2026-10-29T15:27:15+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107019", "first_seen_at": "2026-10-29T15:25:38+00:00"}]
---

# Arbeitszeiterfassung2 Android app: forged holiday entries via crafted ICS import

The feiertage.ImportActivity component of the Arbeitszeiterfassung2 app (versionCode 159) has insecure permissions. A crafted ICS calendar file can make the app create forged holiday and work-time entries.

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

## How to check

- Check whether the installed Arbeitszeiterfassung2 app has versionCode `159` (unknown how to read it from the sources; check the app's version in the Android app settings or package manager)

## Timeline

- 2026-10-29T15:25:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-107019

## From the sources

Insecure permissions in the feiertage.ImportActivity component of Arbeitszeiterfassung2 versionCode 159 allows unauthorized attackers to create forged holiday/work-time entries via crafted ICS imports.

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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_