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CVE-2026-119340medium5.5

Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass allows negative dimensions

Impact

Tesseract OCR engine versions prior to 5.5.4 have a vulnerability where negative dimensions can bypass a signed integer comparison, potentially causing denial of service. The issue occurs when loading a crafted traineddata file. Affected versions are those before 5.5.4.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

tesseract-ocr · GitHub_M

tesseract

1 range
GitHub_M version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

< 5.5.4

unaffected

unknown

Other versions: unknown

Original source description

Tesseract is an open source OCR engine. Prior to 5.5.4, GENERIC_2D_ARRAY::DeSerializeSize in src/ccstruct/matrix.h reads matrix dimensions as signed int32_t values and compares them only with UINT16_MAX, allowing negative values to reach ResizeNoInit. Negative dimensions or a 65535 by 65535 product can create inconsistent allocation state and later out-of-bounds accesses while loading a crafted traineddata file, causing denial of service. This issue is fixed in version 5.5.4.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119340

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-190 ↗

CWE-190: Integer Overflow or Wraparound

GitHub_M

Related →
CWE-681 ↗

CWE-681: Incorrect Conversion between Numeric Types

GitHub_M

Related →
Contributing organizations · 1
GitHub_M

Assigning organization

2026-10-30

What changed

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References

4 sources
github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfg
Security advisoryGitHub_M
github.com/tesseract-ocr/tesseract/pull/4649
PatchGitHub_M
github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08ef
PatchGitHub_M
github.com/tesseract-ocr/tesseract/releases/tag/5.5.4
Release notesGitHub_M