# CVE-2026-32303

## Summary

- **CVE ID:** CVE-2026-32303
- **Severity:** HIGH
- **CVSS Score:** 7.6 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N)
- **CWE:** CWE-346, CWE-354, CWE-451, CWE-923
- **Published:** Mar 20, 2026
- **Last Modified:** Mar 23, 2026

## 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 Products

- cryptomator — cryptomator (< 1.19.1)

## References

- [CNA](https://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43)
- [CNA](https://github.com/cryptomator/cryptomator/pull/4179)
- [CNA](https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625)
- [CNA](https://github.com/cryptomator/cryptomator/releases/tag/1.19.1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.11%
- **EPSS Percentile:** 1.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._