CVE-2026-119341

Tesseract is an open source OCR engine. Prior to 5.5.4, ReadAdaptedClass in src/classify/adaptive.cpp raw-reads an ADAPT_CLASS_STRUCT from a pre-adapted-template .a file without neutralizing TempProtos and Config pointer fields before any destructor path. When the legacy engine is selected, classify_use_pre_adapted_templates is enabled, and an attacker can write the output-basename .a file, the success or rejection path can pass file-controlled pointers to ~ADAPT_CLASS_STRUCT and operator delete, causing memory corruption and denial of service. This issue is fixed in version 5.5.4.

• https://github.com/tesseract-ocr/tesseract/commit/614e971036d2b95d521057ff63d68d6612429b23
• https://github.com/tesseract-ocr/tesseract/pull/4645
• https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4
• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83

• https://github.com/tesseract-ocr/tesseract/commit/614e971036d2b95d521057ff63d68d6612429b23
• https://github.com/tesseract-ocr/tesseract/pull/4645
• https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4
• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-357f-833m-3f83

• HIGHCVE-2026-100813
• HIGHCVE-2026-108133
• UNSCOREDCVE-2026-112893PoC
• MEDIUMCVE-2026-68908PoC
• HIGHCVE-2026-83735
• HIGHCVE-2026-83889
• HIGHCVE-2026-83908
• HIGHCVE-2026-85362

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