CVE-2026-73066
Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata LSTM model component loaded through Tesseract's deserializer
CVSS
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No CVSS
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Exploit Today
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0-100
Published: Aug 11, 2026 · Last modified: Aug 11, 2026 · CWE-787
Not enough EPSS history yet.
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.
- github.comhttps://github.com/tesseract-ocr/tesseract/commit/2f4d2f4bf45c363785d7bf1da29b6628f8939a72
- github.comhttps://github.com/tesseract-ocr/tesseract/pull/4588
- github.comhttps://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3
- github.comhttps://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-7j76-5rq5-5jg8
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-703547.8 HIG—
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