CVE-2026-32303

Cryptomator encrypts data being stored on cloud infrastructure. Prior to version 1.19.1, an integrity check vulnerability allows an attacker to 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 1.19.1.
Configurations

Configuration 1 (hide)

cpe:2.3:a:cryptomator:cryptomator:*:*:*:*:*:*:*:*

History

26 Mar 2026, 13:55

Type Values Removed Values Added
References () https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625 - () https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625 - Patch
References () https://github.com/cryptomator/cryptomator/pull/4179 - () https://github.com/cryptomator/cryptomator/pull/4179 - Issue Tracking
References () https://github.com/cryptomator/cryptomator/releases/tag/1.19.1 - () https://github.com/cryptomator/cryptomator/releases/tag/1.19.1 - Release Notes
References () https://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43 - () https://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43 - Vendor Advisory
CPE cpe:2.3:a:cryptomator:cryptomator:*:*:*:*:*:*:*:*
First Time Cryptomator cryptomator
Cryptomator

20 Mar 2026, 18:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-20 18:16

Updated : 2026-03-26 13:55


NVD link : CVE-2026-32303

Mitre link : CVE-2026-32303

CVE.ORG link : CVE-2026-32303


JSON object : View

Products Affected

cryptomator

  • cryptomator
CWE
CWE-346

Origin Validation Error

CWE-354

Improper Validation of Integrity Check Value

CWE-451

User Interface (UI) Misrepresentation of Critical Information

CWE-923

Improper Restriction of Communication Channel to Intended Endpoints