---
id: CVE-2026-119340
title: >-
  Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass
  allows negative dimensions
summary: >-
  Tesseract is an open source OCR engine. Prior to 5.5.4,
  GENERIC_2D_ARRAY::DeSerializeSize in src/ccstruct/matrix.h reads matrix
  dimensions as signed int32_t values and compares them only with UINT16_MAX,
  allowing negative values to reach…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-190
  - CWE-681
vendor: tesseract-ocr
product: tesseract
affected:
  - tesseract < 5.5.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T02:43:00.457679Z'
published: '2026-10-30'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T02:43:22.872Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119340'
references:
  - url: >-
      https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfg
    label: >-
      https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfg
  - url: 'https://github.com/tesseract-ocr/tesseract/pull/4649'
    label: 'https://github.com/tesseract-ocr/tesseract/pull/4649'
  - url: >-
      https://github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08ef
    label: >-
      https://github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08ef
  - url: 'https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4'
    label: 'https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4'
tags:
  - cve.org
epss: 0.00121
epssPercentile: 0.01938
ingestedAt: '2026-11-05T21:36:00.712Z'
---

## Overview

Tesseract is an open source OCR engine. Prior to 5.5.4, GENERIC_2D_ARRAY::DeSerializeSize in src/ccstruct/matrix.h reads matrix dimensions as signed int32_t values and compares them only with UINT16_MAX, allowing negative values to reach ResizeNoInit. Negative dimensions or a 65535 by 65535 product can create inconsistent allocation state and later out-of-bounds accesses while loading a crafted traineddata file, causing denial of service. This issue is fixed in version 5.5.4.

## Affected

- `tesseract < 5.5.4`

## Remediation

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