DEBIAN-CVE-2026-88051

Source
https://security-tracker.debian.org/tracker/CVE-2026-88051
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88051.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-88051
Upstream
Published
2026-09-10T18:18:14Z
Modified
2026-09-17T09:00:20Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Tesseract is an open source OCR engine. In version 5.5.3 and earlier, the callback form of GenericVector::read in src/ccutil/genericvector.h reads the independent int32 fields reserved and size_used_ from a .traineddata model without a cap or an invariant check. reserve(reserved) allocates the backing array, but the callback loop writes size_used_ elements. A crafted TESSDATA_INTTEMP component with version_id 4 or later can therefore set reserved to a small value and size_used_ to a large value when fontinfo_table_.read(fp, read_info) is called from src/classify/intproto.cpp, causing a heap out-of-bounds write of FontInfo structures, heap corruption, a crash, or potentially controlled corruption. No fixed release is available as of this review.

References

Affected packages

Debian:12 / tesseract

Package

Name
tesseract
Purl
pkg:deb/debian/tesseract?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.3.0-2
5.3.3-1
5.3.4-1
5.3.4-1.1
5.3.4-1.2
5.3.4-1.3
5.3.4-1.4
5.5.0-1
5.5.0-1.1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88051.json"

Debian:13 / tesseract

Package

Name
tesseract
Purl
pkg:deb/debian/tesseract?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.5.0-1
5.5.0-1.1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88051.json"

Debian:14 / tesseract

Package

Name
tesseract
Purl
pkg:deb/debian/tesseract?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.5.0-1
5.5.0-1.1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88051.json"