FKIE_CVE-2026-53762

Vulnerability from fkie_nvd - Published: 2026-08-21 19:17 - Updated: 2026-08-26 18:16
Severity
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
VeraCrypt provides disk encryption with strong security based on TrueCrypt. Prior to 1.26.29, non-default builds created with WOLFCRYPT=1 and WOLFCRYPT_BACKEND route SHA-256 and SHA-512 volume-header key derivation through derive_key_sha256 and derive_key_sha512 in src/Crypto/wolfCrypt.c, where the configured iterations value is discarded and wc_HKDF is used instead of PBKDF2-HMAC. Changing the PIM or iteration count therefore does not increase derivation cost, allowing an attacker with an affected container, disk image, or volume header to perform substantially cheaper offline password guesses. Official precompiled VeraCrypt binaries and normal distribution packages use the standard PBKDF2 backend and are not affected. Volumes created by an affected WOLFCRYPT=1 build require backup and recreation because corrected builds derive different keys. This issue is fixed in version 1.26.29.
References
security-advisories@github.comhttps://github.com/veracrypt/VeraCrypt/commit/39f93910075e1cf492fcf4a9f99a53c7d0b96b87
security-advisories@github.comhttps://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29
security-advisories@github.comhttps://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "VeraCrypt",
          "vendor": "veracrypt",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.26.29"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "VeraCrypt provides disk encryption with strong security based on TrueCrypt. Prior to 1.26.29, non-default builds created with WOLFCRYPT=1 and WOLFCRYPT_BACKEND route SHA-256 and SHA-512 volume-header key derivation through derive_key_sha256 and derive_key_sha512 in src/Crypto/wolfCrypt.c, where the configured iterations value is discarded and wc_HKDF is used instead of PBKDF2-HMAC. Changing the PIM or iteration count therefore does not increase derivation cost, allowing an attacker with an affected container, disk image, or volume header to perform substantially cheaper offline password guesses. Official precompiled VeraCrypt binaries and normal distribution packages use the standard PBKDF2 backend and are not affected. Volumes created by an affected WOLFCRYPT=1 build require backup and recreation because corrected builds derive different keys. This issue is fixed in version 1.26.29."
    }
  ],
  "id": "CVE-2026-53762",
  "lastModified": "2026-08-26T18:16:39.880",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53762",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-26T17:35:29.165865Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T19:17:02.570",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veracrypt/VeraCrypt/commit/39f93910075e1cf492fcf4a9f99a53c7d0b96b87"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-916"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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