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Ubuntu Security NoticesUSN-8882-1

USN-8882-1: Tesseract vulnerabilities

It was discovered that Tesseract incorrectly handled crafted .traineddata models. An attacker could possibly use this issue to cause Tesseract to crash, resulting in a denial of service. (CVE-2026-73067) It was discovered that Tesseract did not properly validate dimensions in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-73066) It was discovered that Tesseract did not properly limit token lengths in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88047) It was discovered that Tesseract did not properly validate layer dimensions in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88048) It was discovered that Tesseract did not properly validate layer sizes in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88049) It was discovered that Tesseract incorrectly handled negative character codes in crafted .traineddata models. An attacker could possibly use this issue to cause Tesseract to crash, resulting in a denial of service. (CVE-2026-88050) It was discovered that Tesseract did not properly validate vector sizes in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88051) It was discovered that Tesseract did not properly validate character IDs in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88052) It was discovered that Tesseract did not properly validate classifier counts in crafted .traineddata models. An attacker could possibly use this issue to execute arbitrary code. (CVE-2026-88053) It was discovered that Tesseract incorrectly handled empty network layers in crafted .traineddata models. An attacker could possibly use this issue to cause Tesseract to crash, resulting in a denial of service. (CVE-2026-88054)

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Scope

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Timeline

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  1. Published by Ubuntu

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-73067View CVSS, KEV, EPSS, and threat contextCVE-2026-73066View CVSS, KEV, EPSS, and threat contextCVE-2026-88047View CVSS, KEV, EPSS, and threat contextCVE-2026-88048View CVSS, KEV, EPSS, and threat contextCVE-2026-88049View CVSS, KEV, EPSS, and threat contextCVE-2026-88050View CVSS, KEV, EPSS, and threat contextCVE-2026-88051View CVSS, KEV, EPSS, and threat contextCVE-2026-88052View CVSS, KEV, EPSS, and threat contextCVE-2026-88053View CVSS, KEV, EPSS, and threat contextCVE-2026-88054View CVSS, KEV, EPSS, and threat context
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