DEBIAN-CVE-2026-88049
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-88049
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88049.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-88049
- Upstream
- Published
- 2026-09-10T17:17:09Z
- Modified
- 2026-09-15T09:03:21Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Tesseract is an open source OCR engine. In version 5.5.3 and earlier, prior .traineddata hardening added bounds checks to NetworkIO::CopyTimeStepGeneral and NetworkIO::Randomize in src/lstm/networkio.cpp but left NetworkIO::WriteTimeStepPart and NetworkIO::AddTimeStepPart unchecked. In LSTM::Forward in src/lstm/lstm.cpp, source_ is sized from the independently deserialized na_ field while the WriteTimeStepPart count is ns_, which comes from the CI gate WeightMatrix dim1() value. A crafted NT_LSTM layer can make ns_ much larger than na_, causing a heap out-of-bounds write during the first recognition step on the default LSTM engine and resulting in 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
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / tesseract
Package
- Name
- tesseract
- Purl
- pkg:deb/debian/tesseract?arch=source&distro=trixie
Debian:14 / tesseract
Package
- Name
- tesseract
- Purl
- pkg:deb/debian/tesseract?arch=source&distro=forky