Is CVE-2026-119341 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-119341 being exploited in the wild.

How severe is CVE-2026-119341?

Informational severity, with a CVSS score of 0, published 30 October 2026.

Which products and versions are affected?

Tesseract OCR Tesseract prior to 5.5.4.

Is there a fix for CVE-2026-119341?

Yes: fixed in 5.5.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-119341 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-119341?

Check whether you run Tesseract OCR Tesseract at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-119341: Tesseract unsafe pointer deserialization in adaptive templates

CVE-2026-119341 · Severity: info · CVSS 0 · Published 2026-10-30

Tesseract is an open-source optical character recognition (OCR) engine used to extract text from images and documents. When the legacy engine is enabled and an attacker can write to the pre-adapted-templates output file, malicious pointer values in that file can be passed to destructors, causing memory corruption and denial of service. This requires specific configuration and file-write access but could crash the application or enable further exploitation.

Technologies: Tesseract OCR Tesseract. Vendors: Tesseract OCR.

Quick answers

Is CVE-2026-119341 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-119341 being exploited in the wild.
How severe is CVE-2026-119341?: Informational severity, with a CVSS score of 0, published 30 October 2026.
Which products and versions are affected?: Tesseract OCR Tesseract prior to 5.5.4.
Is there a fix for CVE-2026-119341?: Yes: fixed in 5.5.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-119341 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-119341?: Check whether you run Tesseract OCR Tesseract at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 5.5.4

Technical details

ReadAdaptedClass in src/classify/adaptive.cpp performs a raw binary read of an ADAPT_CLASS_STRUCT from a .a file without sanitizing pointer fields (TempProtos and Config[] union members), leaving them holding attacker-controlled file bytes. The destructor unconditionally dereferences and deletes these pointers, enabling arbitrary pointer dereference and memory corruption. The vulnerability requires the legacy engine to be selected, classify_use_pre_adapted_templates enabled, and the attacker to write the output-basename .a file; it is fixed in version 5.5.4 by neutralizing pointer members immediately after deserialization.

Affected products

Tesseract OCR Tesseract prior to 5.5.4

Timeline

2026-10-30: disclosed
2026-10-10: patched

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.