SB20260921133 - Red Hat Enterprise Linux 9 update for tesseract

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Main Vulnerability Database SB20260921133

SB20260921133 - Red Hat Enterprise Linux 9 update for tesseract

Published: September 21, 2026

Security Bulletin ID SB20260921133
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds write (CVE-ID: CVE-2026-73066)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to out-of-bounds write in the LSTM Convolve layer when parsing a crafted .traineddata LSTM model component during ordinary OCR recognition. A remote attacker can supply a specially crafted .traineddata file to cause a denial of service.

The issue is triggered after the malicious model file is loaded through Tesseract's .traineddata deserializer.


Remediation

Install update from vendor's website.

References