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CVE-2026-119340

Tesseract: GENERIC_2D_ARRAY DeSerializeSize signed integer comparison bypass allows negative dimensions

CVSS score

5.5

EPSS probability

—

Risk score

0.6

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-119340 Tesseract Signed Integer Comparison Bypass Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

The CVE-2026-119340 vulnerability in Tesseract arises from reading matrix dimensions as signed int32_t values and performing insufficient comparisons. This can lead to out-of-bounds accesses and denial of service when loading crafted traineddata files.

Why does it matter?

This vulnerability can enable denial of service attacks in scenarios involving local access and user interaction. Permitted negative dimensions and flawed allocation states can cause applications to crash.

What should be done?

  • Update Tesseract software to version 5.5.4
  • Follow vendor advisories
  • Restrict loading of untrusted traineddata files
Chain of evidence and sources2 verified claims

Tesseract 5.5.4 öncesi sürümlerde GENERIC_2D_ARRAY::DeSerializeSize fonksiyonu matrix boyutlarını işaretli int32_t olarak okur.

S0 · daybreach-canonicalS1 · cvelist

Hazırlanmış bir traineddata dosyası yüklenirken tutarsız tahsis durumu ve sınır dışı erişimler oluşabilir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

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.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE: CWE-190, CWE-681

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-119340 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1tesseract-ocrtesseract View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.5CVSS V31MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HNVD
5.5CVSS V3_1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

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Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-119340 is associated with the following CWEs:

CWE-190: Integer Overflow or WraparoundCWE-681: Common Weakness Enumeration Entry CWE-681

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-119340 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsGerekmiyor
UserGerekiyor

Official Sources and Advisories

https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfgvendor-advisoryhttps://github.com/tesseract-ocr/tesseract/pull/4649vendor-advisoryhttps://github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08efvendor-advisoryhttps://github.com/tesseract-ocr/tesseract/releases/tag/5.5.4vendor-advisory

CVSS Vector Radar Chart

5.5 / 10
Attack VectorLocalComplexityLowPrivilegesNoneUser Interact.RequiredConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone required
User Interaction—
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

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Weakness Type (CWE & CAPEC)

CWE-190 CWE-681

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CVE-2026-119340 · Tesseract: GENERIC_2D_ARRAY…