CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Lifecycle Timeline
6DescriptionNVD
Cryptomator for Android offers multi-platform transparent client-side encryption for files in the cloud. Prior to version 1.12.3, an integrity check vulnerability allows an attacker tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 1.12.3.
AnalysisAI
An integrity check vulnerability in Cryptomator for Android prior to version 1.12.3 allows attackers to tamper with the vault configuration file, enabling a man-in-the-middle attack against the Hub key loading mechanism. Attackers who can modify the vault.cryptomator file can mix legitimate authentication endpoints with malicious API endpoints to exfiltrate tokens from users unlocking Hub-backed vaults. …
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RemediationAI
Within 24 hours: Identify all Cryptomator for Android deployments and current version inventory. Within 7 days: Deploy Cryptomator for Android version 1.12.3 or later to all affected mobile devices via mobile device management (MDM) or app store enforcement. …
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External POC / Exploit Code
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EUVD-2026-13760