CVE-2026-119340
Medium
Description
Tesseract is an open source OCR engine. Prior to 5.5.4, GENERIC_2D_ARRAY::DeSerializeSize in src/ccstruct/matrix.h reads matrix dimensions as signed int32_t values and compares them only with UINT16_MAX, allowing negative values to reach ResizeNoInit. Negative dimensions or a 65535 by 65535 product can create inconsistent allocation state and later out-of-bounds accesses while loading a crafted traineddata file, causing denial of service. This issue is fixed in version 5.5.4.
SeverityMedium
CVSS5.5
Exploit probability—
ProductTesseract
PublishedOct 30, 2026
First seenNov 4, 2026
Weakness typeCWE-190Integer overflowCWE-681CWE-681
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tesseract-ocr tesseract | < 5.5.4 | — |
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