CVE-2026-119340

Name	CVE-2026-119340
Description	Tesseract is an open source OCR engine. Prior to 5.5.4, GENERIC_2D_ARRAY::DeSerializeSize in src/ccstruct/matrix.h reads matrix dimensions as signed int32_t values and compares them only with UINT16_MAX, allowing negative values to reach ResizeNoInit. Negative dimensions or a 65535 by 65535 product can create inconsistent allocation state and later out-of-bounds accesses while loading a crafted traineddata file, causing denial of service. This issue is fixed in version 5.5.4.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tesseract (PTS)	bookworm	5.3.0-2	vulnerable
	trixie	5.5.0-1	vulnerable
	forky, sid	5.5.0-1.1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
tesseract	source	(unstable)	(unfixed)

Notes

https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-6xhq-wvww-6xfg
https://github.com/tesseract-ocr/tesseract/pull/4649
Fixed by: https://github.com/tesseract-ocr/tesseract/commit/048e92378f1a34dcdaf94bc515c7552ac01f08ef (5.5.4)