HOMEVULNERABILITIESCVE-2026-32303
MEDIUM

CVE-2026-32303

CWE-346Published: March 20, 2026· Updated: Mar 26, 2026

5.9
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-32303 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

Affected Vendors & Products

cryptomator1 product
cryptomator
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2026-32303
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-346
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMar 20, 2026

Related CVEs (CWE-346)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-32303 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.