CVE-2026-73066
6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| tesseract-ocr | tesseract | < 5.5.3 | affected |
Weaknesses
- CWE-787: CWE-787: Out-of-bounds Write
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-7j76-5rq5-5jg8
- https://github.com/tesseract-ocr/tesseract/pull/4588
- https://github.com/tesseract-ocr/tesseract/commit/2f4d2f4bf45c363785d7bf1da29b6628f8939a72
- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3
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