Out-of-bounds Read Affecting tesseract package, versions <4.00~git2288-10f4998a-2ubuntu0.1~esm1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-TESSERACT-18760529
- published29 Sept 2026
- disclosed11 Aug 2026
Introduced: 11 Aug 2026
CVE-2026-73067 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 tesseract to version 4.00git2288-10f4998a-2ubuntu0.1esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tesseract package and not the tesseract package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2026-73067
- https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518
- https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9
- https://github.com/tesseract-ocr/tesseract/issues/4580
- https://github.com/tesseract-ocr/tesseract/pull/4581
- https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3
- https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h