CVE-2026-73066
MEDIUM
6,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: active
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata LSTM model component loaded through Tesseract's deserializer can cause an unchecked signed integer multiplication in Convolve::DeSerialize in src/lstm/convolve.cpp to wrap the convolution output-channel count, undersizing the forward-pass output buffer while writes use the unwrapped element count and causing a heap out-of-bounds write during OCR recognition. This issue is fixed in version 5.5.3.
787
Out-of-bounds Write
DraftCommon Consequences
Security Scopes Affected:
Integrity
Availability
Other
Potential Impacts:
Modify Memory
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Unexpected State
Applicable Platforms
Languages:
Memory-Unsafe, C, C++, Assembly
Technologies:
ICS/OT
https://github.com/tesseract-ocr/tesseract/commit/2f4d2f4bf45c363785d7bf1da29b6…
https://github.com/tesseract-ocr/tesseract/pull/4588
https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3
https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-7j76-5rq5-5…