CVE-2026-119340: medium-severity vulnerability in tesseract-ocr tesseract
Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass allows negative dimensions
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.1%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
tesseract-ocr · tesseractRelated CVEs — tesseract-ocr tesseract
In the same product, most dangerous first.
CVE-2026-119341NONETesseract: File-controlled pointers still reach `delete` in ADAPT_CLASS_STRUCT destructorEPSS 0.3%CVE-2026-88052HIGHTesseract: Heap out-of-bounds write in UNICHARSET::load_via_fgets via count/insert desynchronizationEPSS 0.2%CVE-2026-88053HIGHTesseract: Heap out-of-bounds write in Classify::ReadIntTemplates via unvalidated counts in crafted .traineddataEPSS 0.2%CVE-2026-88048HIGHTesseract: Heap out-of-bounds write/read in FullyConnected::Forward via layer/weight-matrix dimension mismatchEPSS 0.2%CVE-2026-88051HIGHTesseract: Heap out-of-bounds write in GenericVector<T>::read due to independent reserved/size_used_ fieldsEPSS 0.2%CVE-2026-119339MEDIUMTesseract: Crafted LSTM model (`WeightMatrix` mode byte) triggers `ASSERT_HOST` abort in `WeightMatrix::DeSerializeOld` under `FAST_FLOAT` — Denial of ServiceEPSS 0.2%