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Back to active CVEs
Medium · CVSS 5.5CVE-2026-119340

Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass allows negative dimensionsCVE-2026-119340

Answer in brief

CVE-2026-119340 records a Medium severity (CVSS 5.5) vulnerability in Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass allows negative dimensions. The current sources do not mark it as known exploited. The current feed maps tesseract-ocr/tesseract (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps tesseract-ocr/tesseract (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
tesseract-ocr/tesseractgeneric<5.5.45.5.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for tesseract-ocr/tesseract.
  2. 2Review the reported fix. Update tesseract-ocr/tesseract to 5.5.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 30, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Tesseract: Double free and use after free in the PAGE XML renderer on right-to-left pagesSame tesseract-ocr/tesseract package
  • Tesseract: Crafted LSTM model (`WeightMatrix` mode byte) triggers `ASSERT_HOST` abort in `WeightMatrix::DeSerializeOld` under `FAST_FLOAT` — Denial of ServiceSame tesseract-ocr/tesseract package
  • Tesseract: File-controlled pointers still reach `delete` in ADAPT_CLASS_STRUCT destructorSame tesseract-ocr/tesseract package

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-190, CWE-681
Source
CVE List V5
Source checked
Oct 30, 2026
References
4 linked sources
Open source record