TI-2026-24837 Aliases CVE-2026-32309

Cryptomator: Hub unlocking accepts plaintext HTTP and unvalidated endpoint schemes

LOW 39CWE-319Published 2026-03-20 · Updated 2026-03-27

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · High · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-319.

Summary

Cryptomator encrypts data being stored on cloud infrastructure. Prior to version 1.19.1, the Hub-based unlock flow explicitly supports hub+http and consumes Hub endpoints from vault metadata without enforcing HTTPS. As a result, a vault configuration can drive OAuth and key-loading traffic over plaintext HTTP or other insecure endpoint combinations. An active network attacker can tamper with or observe this traffic. Even when the vault key is encrypted for the device, bearer tokens and endpoint-level trust decisions are still exposed to downgrade and interception. This issue has been patched in version 1.19.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00213 11th percentileScored 2026-11-07

Fix Fixed cryptomator (cryptomator): 1.19.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
cryptomator	cryptomator	before 1.19.1	1.19.1	Patch available	CNA

cryptomator Vendorcryptomator Affected before 1.19.1 Fixed in 1.19.1 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cryptomator:cryptomator::::::::	before 1.19.1	Vulnerable	cryptomator

cpe:2.3:a:cryptomator:cryptomator:*:*:*:*:*:*:*:* Versions before 1.19.1 Vulnerable ·cryptomator

Remediation

Fix · CNA cryptomator (cryptomator) Fixed in 1.19.1

Timeline

2026-10-02 Threatist record created from CVE-2026-32309

References

Advisory 1

https://github.com/cryptomator/cryptomator/security/advisories/GHSA-vv33-h7qx-c264

Other 1

https://github.com/cryptomator/cryptomator/releases/tag/1.19.1

TI-2023-19340 Cryptomator's MSI installer allows local privilege escalation CVSS 3.1HIGH 7.8
TI-2023-20652 Cryptomator vulnerable to Local Elevation of Privileges 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-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