FKIE_CVE-2026-32303

Vulnerability from fkie_nvd - Published: 2026-03-20 18:16 - Updated: 2026-03-20 18:16
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625
security-advisories@github.comhttps://github.com/cryptomator/cryptomator/pull/4179
security-advisories@github.comhttps://github.com/cryptomator/cryptomator/releases/tag/1.19.1
security-advisories@github.comhttps://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-32303",
  "lastModified": "2026-03-20T18:16:14.593",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-20T18:16:14.593",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cryptomator/cryptomator/commit/6b82abcd80449a30b561d823193f9ecea542a625"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cryptomator/cryptomator/pull/4179"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cryptomator/cryptomator/releases/tag/1.19.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/cryptomator/cryptomator/security/advisories/GHSA-34rf-rwr3-7g43"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-354"
        },
        {
          "lang": "en",
          "value": "CWE-451"
        },
        {
          "lang": "en",
          "value": "CWE-923"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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