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    4 vulnerabilities by veracrypt

    CVE-2026-54073 (GCVE-0-2026-54073)

    Vulnerability from nvd – Published: 2026-08-21 18:51 – Updated: 2026-08-21 19:32
    VLAI
    Title
    VeraCrypt: Hidden volume quick format weakens plausible deniability
    Summary
    VeraCrypt provides disk encryption with strong security based on TrueCrypt. From 1.26.6 until 1.26.29, file-hosted hidden volume creation forces quick format and the FormatNoFs function in src/Common/Format.c and FormatFat function in src/Common/Fat.c use WriteFile to place raw zeroed sectors at predictable 128 MiB intervals. These writes bypass the normal EncryptDataUnits formatting path, leaving deterministic plaintext markers in an area expected to resemble random ciphertext. The markers can weaken plausible deniability during forensic inspection, although they do not disclose hidden-volume content or reduce the strength of VeraCrypt encryption. This issue is fixed in version 1.26.29.
    Severity
    4.6 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-21 19:32 UTC
    CWE
    • CWE-693 - Protection Mechanism Failure
    Assigner
    References
    Impacted products
    Vendor Product Version
    veracrypt VeraCrypt Affected: >= 1.26.6, < 1.26.29
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
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              "content": {
                "id": "CVE-2026-54073",
                "options": [
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                "timestamp": "2026-08-21T19:32:21.279284Z",
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            "url": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-jjcr-75w7-58jp"
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        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "VeraCrypt",
          "vendor": "veracrypt",
          "versions": [
            {
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        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
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            "privilegesRequired": "NONE",
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      },
      "title": "VeraCrypt: Hidden volume quick format weakens plausible deniability"
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    CVE-2026-53762 (GCVE-0-2026-53762)

    Vulnerability from nvd – Published: 2026-08-21 18:50 – Updated: 2026-08-21 18:50
    VLAI
    Title
    VeraCryp: wolfCrypt backend bypasses VeraCrypt PBKDF2 iteration count (non-default WOLFCRYPT=1 builds)
    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.
    Severity
    6.2 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    CWE
    • CWE-916 - Use of Password Hash With Insufficient Computational Effort
    Assigner
    References
    Impacted products
    Vendor Product Version
    veracrypt VeraCrypt Affected: < 1.26.29
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "VeraCrypt",
          "vendor": "veracrypt",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.26.29"
            }
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        }
      ],
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        }
      ],
      "metrics": [
        {
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            "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"
          }
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      },
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          ],
          "url": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5"
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        },
        {
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          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29"
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      ],
      "source": {
        "advisory": "GHSA-94c6-mgmv-mqc5",
        "discovery": "UNKNOWN"
      },
      "title": "VeraCryp: wolfCrypt backend bypasses VeraCrypt PBKDF2 iteration count (non-default WOLFCRYPT=1 builds)"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
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    "state": "PUBLISHED"
  },
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}

    CVE-2026-54073 (GCVE-0-2026-54073)

    Vulnerability from cvelistv5 – Published: 2026-08-21 18:51 – Updated: 2026-08-21 19:32
    VLAI
    Title
    VeraCrypt: Hidden volume quick format weakens plausible deniability
    Summary
    VeraCrypt provides disk encryption with strong security based on TrueCrypt. From 1.26.6 until 1.26.29, file-hosted hidden volume creation forces quick format and the FormatNoFs function in src/Common/Format.c and FormatFat function in src/Common/Fat.c use WriteFile to place raw zeroed sectors at predictable 128 MiB intervals. These writes bypass the normal EncryptDataUnits formatting path, leaving deterministic plaintext markers in an area expected to resemble random ciphertext. The markers can weaken plausible deniability during forensic inspection, although they do not disclose hidden-volume content or reduce the strength of VeraCrypt encryption. This issue is fixed in version 1.26.29.
    Severity
    4.6 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-21 19:32 UTC
    CWE
    • CWE-693 - Protection Mechanism Failure
    Assigner
    References
    Impacted products
    Vendor Product Version
    veracrypt VeraCrypt Affected: >= 1.26.6, < 1.26.29
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54073",
                "options": [
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
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          "product": "VeraCrypt",
          "vendor": "veracrypt",
          "versions": [
            {
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            "attackRequirements": "NONE",
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    CVE-2026-53762 (GCVE-0-2026-53762)

    Vulnerability from cvelistv5 – Published: 2026-08-21 18:50 – Updated: 2026-08-21 18:50
    VLAI
    Title
    VeraCryp: wolfCrypt backend bypasses VeraCrypt PBKDF2 iteration count (non-default WOLFCRYPT=1 builds)
    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.
    Severity
    6.2 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    CWE
    • CWE-916 - Use of Password Hash With Insufficient Computational Effort
    Assigner
    References
    Impacted products
    Vendor Product Version
    veracrypt VeraCrypt Affected: < 1.26.29
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "VeraCrypt",
          "vendor": "veracrypt",
          "versions": [
            {
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        }
      ],
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            "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"
          }
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      ],
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      },
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        {
          "name": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5",
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          ],
          "url": "https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-94c6-mgmv-mqc5"
        },
        {
          "name": "https://github.com/veracrypt/VeraCrypt/commit/39f93910075e1cf492fcf4a9f99a53c7d0b96b87",
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            "x_refsource_MISC"
          ],
          "url": "https://github.com/veracrypt/VeraCrypt/commit/39f93910075e1cf492fcf4a9f99a53c7d0b96b87"
        },
        {
          "name": "https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29"
        }
      ],
      "source": {
        "advisory": "GHSA-94c6-mgmv-mqc5",
        "discovery": "UNKNOWN"
      },
      "title": "VeraCryp: wolfCrypt backend bypasses VeraCrypt PBKDF2 iteration count (non-default WOLFCRYPT=1 builds)"
    }
  },
  "cveMetadata": {
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