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.

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History

Sat, 31 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 30 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
First Time appeared Tesseract-ocr
Tesseract-ocr tesseract Ocr
Vendors & Products Tesseract-ocr
Tesseract-ocr tesseract Ocr

Fri, 30 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Tesseract: File-controlled pointers still reach `delete` in ADAPT_CLASS_STRUCT destructor
Weaknesses CWE-763
References
Metrics cvssV3_1

{'score': 0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-30T20:24:56.121Z

Reserved: 2026-10-29T20:44:30.286Z

Link: CVE-2026-119341

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-30T21:16:52.290

Modified: 2026-10-30T21:16:52.290

Link: CVE-2026-119341

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-30T20:24:56Z

Links: CVE-2026-119341 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T22:15:14Z

Weaknesses