CVE-2026-119341 Tesseract: File-controlled pointers still reach `delete` in ADAPT_CLASS_STRUCT destructor
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-119341?
CVE-2026-119341 is a vulnerability in tesseract-ocr tesseract, published on 30 Oct 2026.
Official 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.
Weakness: CWE-763
Which versions are affected by CVE-2026-119341?
How do I fix CVE-2026-119341?
Upgrade to a fixed version.
Is CVE-2026-119341 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-119341 exists.
Sources
Also known as DEBIAN-CVE-2026-119341, ECHO-de64-4d5c-048e, GHSA-357f-833m-3f83, UBUNTU-CVE-2026-119341.