CVE-2026-32309 (GCVE-0-2026-32309)
Vulnerability from cvelistv5 – Published: 2026-03-20 18:19 – Updated: 2026-03-27 15:24
VLAI
EPSS
VEX
Title
Cryptomator: Hub unlocking accepts plaintext HTTP and unvalidated endpoint schemes
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 15:18 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/cryptomator/cryptomator/securi… | x_refsource_CONFIRM |
| https://github.com/cryptomator/cryptomator/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cryptomator | cryptomator |
Affected:
< 1.19.1
|
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|---|
Nomenclature
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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