CVE-2026-73067

Summary

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.

Affected Software

Weaknesses

• CWE-125: CWE-125: Out-of-bounds Read

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-x3vq-7rr7-5x3h
• https://github.com/tesseract-ocr/tesseract/issues/4580
• https://github.com/tesseract-ocr/tesseract/pull/4581
• https://github.com/tesseract-ocr/tesseract/commit/55287a94b8044c05ce3fd10f5aca6ebbd238e518
• https://github.com/tesseract-ocr/tesseract/commit/82727cc11c34eaf1249af002d69f6bbae70993b9
• https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3

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