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CVE-2026-88050

5.5 · MEDIUM

Tesseract is an open source OCR engine.

Published Sep 10, 2026tesseract-ocrCWE-787EPSS 0.15%

Overview

CVE-2026-88050 is a medium-severity vulnerability affecting tesseract-ocr tesseract_ocr. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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, RecodedCharID::DeSerialize in src/ccutil/unicharcompress.h validates length_ but accepts negative code_ values from a crafted .traineddata recoder component. UnicharCompress::ComputeCodeRange in src/ccutil/unicharcompress.cpp can consequently produce code_range_ equal to zero, after which SetupDecoder indexes is_valid_start_ with the negative code on a size-zero vector. The resulting out-of-bounds bit write uses a large wrapped index and reliably causes a wild-address crash or allocation failure on the default LSTM engine. 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/c94a5532ee04db5a4919542832fd94caee5ea58fGitHubgithub.com/tesseract-ocr/tesseract/security/advisories/GHSA-7v9h-3q3m-w68gGitHubgithub.com/tesseract-ocr/tesseract/security/advisories/GHSA-7v9h-3q3m-w68g

How CyberStrike helps

Frequently asked questions

What is CVE-2026-88050?

CVE-2026-88050 is a medium-severity vulnerability affecting tesseract-ocr tesseract_ocr. It was published on September 10, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-88050?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-88050?

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-2026-88050?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-88050 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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