medium6.8
CVE-2026-73066
Tesseract is an open source OCR engine.
Impact
Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata LSTM model component loaded through Tesseract's deserializer can cause an unchecked signed integer multiplication in Convolve::DeSerialize in src/lstm/convolve.cpp to wrap the convolution output-channel count, undersizing the forward-pass output buffer while writes use the unwrapped element count and causing a heap out-of-bounds write during OCR recognition. This issue is fixed in version 5.5.3.
Affected products
| Product | Affected versions |
|---|---|
| Tesseract Is An Open Source OCR Engine. | before 5.5.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/tesseract-ocr/tesseract/commit/2f4d2f4bf45c363785d7bf1da29b6628f8939a72
- https://github.com/tesseract-ocr/tesseract/pull/4588
- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3
- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-7j76-5rq5-5jg8