CVE-2026-32303

MEDIUM EPSS 1.5%
Published Mar 20, 20263mo ago · Modified Jun 17, 20261w ago
5.9 CVSS 3.1
Medium
Find Similar
Published Mar 20, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.9
Exploitability
1.6
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
1.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 4

CWE-346
CWE-354
CWE-451
CWE-923

Affected Products 1

VendorProductVersionRange
cryptomatorcryptomator* <1.19.1

References 4

  • github.com https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625
    Patch
  • github.com https://github.com/cryptomator/cryptomator/pull/4179
    Issue Tracking
  • github.com https://github.com/cryptomator/cryptomator/releases/tag/1.19.1
    Release Notes
  • github.com https://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43
    Vendor Advisory

Remediation

  • github.com https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625
    Patch