Out-of-bounds Write Affecting tesseract package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-DEBIAN14-TESSERACT-19685752
  • published11 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

CVE-2026-88050  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 tesseract.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tesseract package and not the tesseract package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Tesseract is an open source OCR engine. In version 5.5.3 and earlier, RecodedCharID::DeSerialize in src/ccutil/unicharcompress.h validates length_ but accepts negative code_ values from a crafted .traineddata recoder component. UnicharCompress::ComputeCodeRange in src/ccutil/unicharcompress.cpp can consequently produce code_range_ equal to zero, after which SetupDecoder indexes is_valid_start_ with the negative code on a size-zero vector. The resulting out-of-bounds bit write uses a large wrapped index and reliably causes a wild-address crash or allocation failure on the default LSTM engine. No fixed release is available as of this review.

CVSS Base Scores

version 3.1