CVE-2026-119339

Tesseract is an open source OCR engine. Prior to 5.5.4, WeightMatrix::DeSerialize trusts a mode byte from a traineddata LSTM network and calls WeightMatrix::DeSerializeOld when kDoubleFlag is clear. In default FAST_FLOAT builds, DeSerializeOld invokes ASSERT_HOST instead of returning an error, so loading a crafted model through TessBaseAPI::Init terminates the process and causes denial of service. This issue is fixed in version 5.5.4.

• CWE-20
• CWE-617

• https://github.com/tesseract-ocr/tesseract/commit/c053424327352b9d5180aa7540c1f9e67c64f27e
• https://github.com/tesseract-ocr/tesseract/pull/4657
• https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4
• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-h9g4-frjx-6cj3

Published

Oct 30, 2026

Last Modified

Oct 30, 2026

Status

Received

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