Read the docs
TI-2023-20652 Aliases CVE-2023-39520

Cryptomator vulnerable to Local Elevation of Privileges

Priority HIGH 67CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.

Summary

Cryptomator encrypts data being stored on cloud infrastructure. The MSI installer provided on the homepage for Cryptomator version 1.9.2 allows local privilege escalation for low privileged users, via the `repair` function. The problem occurs as the repair function of the MSI is spawning an SYSTEM Powershell without the `-NoProfile` parameter. Therefore the profile of the user starting the repair will be loaded. Version 1.9.3 contains a fix for this issue. Adding a `-NoProfile` to the powershell is a possible workaround.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cryptomatorcryptomatorup to 1.9.2—No fix listedCNA
  • cryptomator Vendorcryptomator Affected up to 1.9.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cryptomator:cryptomator:*:*:*:*:*:*:*:*before 1.9.3Vulnerablecryptomator
  • cpe:2.3:a:cryptomator:cryptomator:*:*:*:*:*:*:*:* Versions before 1.9.3 Vulnerable ·cryptomator

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39520

References

Exploit 1

Patch 1

Other 2

  • TI-2023-19340 Cryptomator's MSI installer allows local privilege escalation CVSS 3.1HIGH 7.8
  • TI-2026-24838 Cryptomator: Unverified masterkeyfile key IDs can access arbitrary local or UNC paths CVSS 3.1MEDIUM 5.3
  • TI-2026-25868 Cryptomator Hub OAuth token exchange HTTP downgrade via getAuthority() scheme confusion (CVE-2026-32303 bypass) CVSS 3.1MEDIUM 4.8
  • TI-2026-24837 Cryptomator: Hub unlocking accepts plaintext HTTP and unvalidated endpoint schemes CVSS 4.0HIGH 8.7
  • TI-2022-09052 Cryptomator through 1.6.5 allows DYLIB injection because, although it has the flag 0x1000… CVSS 3.1HIGH 7.8
  • TI-2026-24846 Cryptomator for IOS: Tampered vault configuration allows MITM attack on Hub API CVSS 3.1HIGH 7.6
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences