CVE catalog
CVE-2023-45139
fontTools vulnerabilities
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.23% · Oct 25, 2026
fontTools is a library for manipulating fonts, written in Python. The subsetting module has a XML External Entity Injection (XXE) vulnerability which allows an attacker to resolve arbitrary entities when a candidate font (OT-SVG fonts), which contains a SVG table, is parsed. This allows attackers to include arbitrary files from the filesystem fontTools is running on or make web requests from the host system. This vulnerability has been patched in version 4.43.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | fonttools | sid | 4.65.0-1 | fixed |
| Debian | fonttools | forky | 4.65.0-1 | fixed |
| Debian | fonttools | trixie | 4.57.0-1+deb13u1 | fixed |
| Debian | fonttools | bookworm | 4.38.0-1+deb12u1 | fixed |
| Ubuntu | fonttools | noble | 4.46.0-1ubuntu0.1~esm1 | fixed |
| Ubuntu | python-fonttools-doc | noble | 4.46.0-1ubuntu0.1~esm1 | fixed |
| Ubuntu | python3-fonttools | noble | 4.46.0-1ubuntu0.1~esm1 | fixed |
| Opensuse | python-FontTools | tumbleweed | 4.62.1-1.3 | fixed |
| Ubuntu | fonttools | pro | 4.23.1-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.27.1-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.28.3-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.28.5-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.29.1-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.29.1-2build1 | vulnerable |
| Ubuntu | fonttools | pro | 4.29.1-2ubuntu0.1~esm1 | fixed |
| Ubuntu | fonttools | pro | 4.38.0-1build1 | vulnerable |
| Ubuntu | fonttools | pro | 4.38.0-1build2 | vulnerable |
| Ubuntu | fonttools | pro | 4.46.0-1 | vulnerable |
| Ubuntu | fonttools | pro | 4.46.0-1build2 | vulnerable |
| Ubuntu | fonttools | pro | 4.46.0-1ubuntu0.1~esm1 | fixed |
| Ubuntu | fonttools | 25.10 | 4.55.3-2build1 | vulnerable |
| Ubuntu | fonttools | 25.10 | 4.55.3-2ubuntu0.25.10.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | fonttools | source | sid | 4.46.0-1 | not yet assigned | Not reported | Not reported |
| Debian | fonttools | source | forky | 4.46.0-1 | not yet assigned | Not reported | Not reported |
| Debian | fonttools | source | trixie | 4.46.0-1 | not yet assigned | Not reported | Not reported |
| Debian | fonttools | source | bookworm | 4.38.0-1+deb12u1 | not yet assigned | Not reported | Not reported |
| Ubuntu | fonttools | deb | noble | 4.46.0-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | python-fonttools-doc | deb | noble | 4.46.0-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | python3-fonttools | deb | noble | 4.46.0-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Opensuse | python-FontTools | rpm | tumbleweed | 4.62.1-1.3 | Not reported | OPENSUSE-SU-2026:11991-1 | Not reported |
| Ubuntu | fonttools | deb | pro | 4.29.1-2ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2023-45139 | Not reported |
| Ubuntu | fonttools | deb | pro | 4.46.0-1ubuntu0.1~esm1 | Not reported | USN-7917-1 | Not reported |
| Ubuntu | fonttools | deb | 25.10 | 4.55.3-2ubuntu0.25.10.1 | Not reported | USN-7917-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13686-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-45139]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-45139]
- [https://osv.dev/vulnerability/USN-7917-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11991-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-45139]
- [https://ubuntu.com/security/notices/USN-7917-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-3377.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]