DEBIAN-CVE-2026-88047

Source
https://security-tracker.debian.org/tracker/CVE-2026-88047
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88047.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-88047
Upstream
Published
2026-09-10T17:17:08Z
Modified
2026-09-15T09:03:21Z
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, Classify::ReadNormProtos in src/classify/normmatch.cpp parses the NORMPROTO component of a .traineddata file and uses std::istream::operator>>(char*) to extract a whitespace-delimited token into a fixed 61-byte stack buffer without setting a stream width. The 100-byte line buffer can carry a token of up to 99 characters, so a token longer than 60 characters writes up to 39 attacker-controlled bytes past the buffer during TessBaseAPI::Init of the legacy engine, causing stack corruption, denial of service, and potentially control-flow hijacking on affected standard-library implementations. Builds using Apple's libc++ C++20 bounded array overload are incidentally protected, while typical libstdc++ builds remain affected. 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-2026-88047.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-2026-88047.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-2026-88047.json"