---
id: CVE-2026-54073
title: VeraCrypt provides disk encryption with strong security based on TrueCrypt
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 sr…
severity: none
cwe:
  - CWE-693
published: '2026-08-21'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:23:59.847'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54073'
references:
  - url: >-
      https://github.com/veracrypt/VeraCrypt/commit/689a59cd584f090ca5f9214d5f2f3a9eac499e53
    label: security-advisories@github.com
  - url: 'https://github.com/veracrypt/VeraCrypt/releases/tag/VeraCrypt_1.26.29'
    label: security-advisories@github.com
  - url: >-
      https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-jjcr-75w7-58jp
    label: security-advisories@github.com
  - url: >-
      https://github.com/veracrypt/VeraCrypt/security/advisories/GHSA-jjcr-75w7-58jp
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00124
epssPercentile: 0.0181
ingestedAt: '2026-09-25T15:10:56.346Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.