CVE-2026-32310Public exploitNetwork attack vector

Credential disclosure via unverified UNC path lookup

Published Mar 20, 2026 · Updated Mar 20, 2026

Path traversal in Skymatic Cryptomator 1.6.0 through 1.19.0 allows context-dependent attackers to expose NTLM material via UNC paths. MasterkeyFileLoadingStrategy resolves an unverified keyId against the vault path and calls Files.exists before checking integrity or containment. An attacker must alter the vault configuration and induce an unlock; Windows can initiate SMB authentication, while other paths cause unintended local-file access attempts.

CVSS severity4.1
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Skymatic Cryptomator 1.6.0 through 1.19.0 allows context-dependent attackers to expose NTLM material via UNC paths. MasterkeyFileLoadingStrategy resolves an unverified keyId against the vault path and calls Files.exists before checking integrity or containment. An attacker must alter the vault configuration and induce an unlock; Windows can initiate SMB authentication, while other paths cause unintended local-file access attempts.

The record

CVE
CVE-2026-32310
Published
Mar 20, 2026
Updated
Mar 20, 2026
Vendor
Cryptomator
Product
Cryptomator
Classifications
CWE-22, T1187
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.6.0, <= 1.19.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Cryptomator · Cryptomatorversion=>= 1.6.0, <= 1.19.0

Published CVSS scores

4.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1187Forced Authentication

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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