CVE-2026-88052: tesseract-ocr tesseract, грешка в паметта

Описание

Оригинално описание

Tesseract is an open source OCR engine. In version 5.5.3 and earlier, UNICHARSET::load_via_fgets in src/ccutil/unicharset.cpp trusts the declared unichar count as a loop bound and uses id as an unchecked index into the unichars vector. unichar_insert_backwards_compatible can leave the vector unchanged for an empty, duplicate, or already-encodable representation, causing id to become larger than unichars.size(). Subsequent set_* calls and the write to unichars[id].properties.enabled then write UNICHAR_PROPERTIES beyond the vector during initialization in both the default LSTM and legacy engines, causing heap corruption, a crash, or potentially controlled corruption. No fixed release is available as of this review.

Засегнати продукти

• tesseract-ocr tesseract: <= 5.5.3

Вид слабост

• CWE-129 Неправилна валидация на индекс на масив
• CWE-787 Out-of-bounds Write

История

Други уязвимости в tesseract-ocr tesseract

• 0.0CVE-2026-119341
• 5.5CVE-2026-119340
• 5.5CVE-2026-119339
• 6.9CVE-2026-119338
• 6.9CVE-2026-88054

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-88052
• https://nvd.nist.gov/vuln/detail/CVE-2026-88052
• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-2hm8-q5c7-c373
• https://github.com/tesseract-ocr/tesseract/commit/2d04d640db2e8c7e3bab2369d599343b5a8b8443