CVE-2026-73067: Tesseract-Ocr Tesseract

Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Tesseract-Ocr Tesseract: before 5.5.3 (fixed in 5.5.3)

Published 2026-08-11. Last modified 2026-09-09.