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CVE-2026-88048

7.1 · HIGH

Tesseract is an open source OCR engine.

Published Sep 10, 2026tesseract-ocrCWE-125EPSS 0.17%

Overview

CVE-2026-88048 is a high-severity vulnerability affecting tesseract-ocr tesseract_ocr. It was published on September 10, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Tesseract is an open source OCR engine. In version 5.5.3 and earlier, FullyConnected::DeSerialize in src/lstm/fullyconnected.cpp does not validate the deserialized layer scalars ni_ and no_ against the weight-matrix dimensions. During FullyConnected::Forward, MatrixDotVector in src/lstm/weightmatrix.cpp writes w.dim1() results into temp_line, which is sized from no_, and reads w.dim2() minus one inputs from curr_input, which is sized from ni_. A crafted .traineddata NT_SOFTMAX layer can therefore use inconsistent dimensions to cause a heap out-of-bounds write and read on the default LSTM engine, resulting in heap corruption, a crash, information disclosure, or potentially controlled corruption. No fixed release is available as of this review.

Remediation

Check the references section for vendor advisories and patches from tesseract-ocr. Update tesseract_ocr to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
tesseract-ocrtesseract_ocr0Affected

References

GitHubgithub.com/tesseract-ocr/tesseract/commit/103dc134eb36411ddc6833ec20aa2c76795bd0ffGitHubgithub.com/tesseract-ocr/tesseract/security/advisories/GHSA-q44c-23p6-5mw6GitHubgithub.com/tesseract-ocr/tesseract/security/advisories/GHSA-q44c-23p6-5mw6

How CyberStrike helps

Frequently asked questions

What is CVE-2026-88048?

CVE-2026-88048 is a high-severity vulnerability affecting tesseract-ocr tesseract_ocr. It was published on September 10, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-88048?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-88048?

Check the references section for vendor advisories and patches from tesseract-ocr. Update tesseract_ocr to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-88048?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-88048 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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