---
id: CVE-2026-73067
title: Tesseract is an open source OCR engine
summary: >-
  Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata
  model loaded through TessBaseAPI::Init can cause
  SquishedDawg::read_squished_dawg in src/dict/dawg.cpp to accept an
  unterminated forward-edge run, after which…
severity: none
cwe:
  - CWE-125
published: '2026-08-11'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:46:02.457'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73067'
references:
  - url: >-
      https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518
    label: security-advisories@github.com
  - url: >-
      https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9
    label: security-advisories@github.com
  - url: 'https://github.com/tesseract-ocr/tesseract/issues/4580'
    label: security-advisories@github.com
  - url: 'https://github.com/tesseract-ocr/tesseract/pull/4581'
    label: security-advisories@github.com
  - url: 'https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00126
epssPercentile: 0.02667
ingestedAt: '2026-09-09T21:22:45.527Z'
---

## Overview

Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata model loaded through TessBaseAPI::Init can cause SquishedDawg::read_squished_dawg in src/dict/dawg.cpp to accept an unterminated forward-edge run, after which SquishedDawg::Load calls num_forward_edges(0) and last_edge in src/dict/dawg.h reads beyond edges_, causing a heap out-of-bounds read and process crash before image processing. This issue is fixed in version 5.5.3.

## Remediation

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