CVEvulnerability

CVE-2026-32303

5.9 MEDIUM Published 2026-03-20 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Weaknesses
CWE-346, CWE-354, CWE-451, CWE-923

Description

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.

Affected configurations

• cryptomator cryptomator (< 1.19.1)

Related

Weakness · CWE (4)

  • CWE-346 Origin Validation Error weakness
  • CWE-354 Improper Validation of Integrity Check Value weakness
  • CWE-451 User Interface (UI) Misrepresentation of Critical Information weakness
  • CWE-923 Improper Restriction of Communication Channel to Intended Endpoints weakness

References