CVE-2026-73067

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{"bugzilla": {"description": "tesseract: Tesseract: Denial of Service due to crafted data model", "id": "2514014", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514014"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata model loaded through TessBaseAPI::Init can cause SquishedDawg::read_squished_dawg in src/dict/dawg.cpp to accept an unterminated forward-edge run, after which SquishedDawg::Load calls num_forward_edges(0) and last_edge in src/dict/dawg.h reads beyond edges_, causing a heap out-of-bounds read and process crash before image processing. This issue is fixed in version 5.5.3.", "A flaw was found in Tesseract, an open-source Optical Character Recognition (OCR) engine. A remote attacker could exploit this vulnerability by providing a specially crafted `.traineddata` model. When this malicious model is loaded, it can cause the software to read beyond its allocated memory, leading to a process crash. This results in a denial of service, making the Tesseract application unavailable."], "mitigation": {"lang": "en:us", "value": "Only use .traineddata model files obtained from trusted sources. Do not load model files from untrusted or unknown origins."}, "name": "CVE-2026-73067", "public_date": "2026-08-11T14:51:32Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-73067\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-73067\nhttps://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518\nhttps://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9\nhttps://github.com/tesseract-ocr/tesseract/issues/4580\nhttps://github.com/tesseract-ocr/tesseract/pull/4581\nhttps://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3\nhttps://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h"], "statement": "A flaw was found in Tesseract, an open-source Optical Character Recognition (OCR) engine. A heap out-of-bounds read in the DAWG dictionary loader can be triggered by a specially crafted .traineddata model file, causing the Tesseract process to crash. This issue requires a user to load an untrusted model file, limiting the attack surface.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.5.3)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "tesseract", "source": "cna", "vendor": "tesseract-ocr"}, "product": "tesseract", "vendor": "tesseract_project"}], "created": "2026-08-11T23:15:13.096976+00:00", "updated": "2026-08-13T10:41:13.845549+00:00", "vendors": ["tesseract_project", "tesseract_project$PRODUCT$tesseract"]}