CVEvulnerability

CVE-2026-33472

4.8 MEDIUM Published 2026-04-16 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-04-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Weaknesses
CWE-305, CWE-319

Description

Cryptomator is an open-source client-side encryption application for cloud storage. Version 1.19.1 contains a logic flaw in CheckHostTrustController.getAuthority() that allows an attacker to bypass the security fix for CVE-2026-32303. The method hardcodes the URI scheme based on port number, causing HTTPS URLs with port 80 to produce the same authority string as HTTP URLs, which defeats both the consistency check and the HTTP block validation. An attacker with write access to a cloud-synced vault.cryptomator file can craft a Hub configuration where apiBaseUrl and authEndpoint use HTTPS with port 80 to pass auto-trust validation, while tokenEndpoint uses plaintext HTTP. The vault is auto-trusted without user prompt, and a network-positioned attacker can intercept the OAuth token exchange to access the Cryptomator Hub API as the victim. This issue has been fixed in version 1.19.2.

Affected configurations

• cryptomator cryptomator (< 1.19.2)

Related

Weakness · CWE (2)

  • CWE-305 Authentication Bypass by Primary Weakness weakness
  • CWE-319 Cleartext Transmission of Sensitive Information weakness

References