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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.5 · tesseract-ocrNVD modified 2026-10-30 20:22
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 4
- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfg x_refsource_confirm
- https://github.com/tesseract-ocr/tesseract/pull/4649 x_refsource_misc
- https://github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08ef x_refsource_misc
- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4 x_refsource_misc