CVE catalog
CVE-2020-14001
ruby-kramdown: CVE-2020-14001
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.56% · Oct 25, 2026
The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.
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 | ruby-kramdown | sid | 2.5.2-1 | fixed |
| Debian | ruby-kramdown | forky | 2.5.2-1 | fixed |
| Debian | ruby-kramdown | trixie | 2.5.1-1 | fixed |
| Debian | ruby-kramdown | bookworm | 2.4.0-2 | fixed |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-2 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-4 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-4ubuntu0.1 | fixed |
| Opensuse | rubygem-kramdown | tumbleweed | 2.4.0-1.17 | fixed |
| Opensuse | rubygem-kramdown | tumbleweed | 2.4.0-1.12 | fixed |
| Opensuse | ruby3.2-rubygem-kramdown | tumbleweed | 2.4.0-1.8 | fixed |
| Suse | rubygem-kramdown | linux enterprise high availability extension 15 | 1.15.0-150000.3.3.1 | fixed |
| Suse | rubygem-kramdown | linux enterprise high availability extension 15 sp1 | 1.15.0-150000.3.3.1 | fixed |
| Suse | rubygem-kramdown | linux enterprise high availability extension 15 sp2 | 1.15.0-150000.3.3.1 | fixed |
| Suse | rubygem-kramdown | linux enterprise high availability extension 15 sp3 | 1.15.0-150000.3.3.1 | fixed |
| Suse | rubygem-kramdown | linux enterprise high availability extension 15 sp4 | 1.15.0-150000.3.3.1 | fixed |
| Opensuse | rubygem-kramdown | leap 15.3 | 1.15.0-150000.3.3.1 | fixed |
| Opensuse | rubygem-kramdown | leap 15.4 | 1.15.0-150000.3.3.1 | fixed |
| Opensuse | rubygem-kramdown | tumbleweed | 2.4.0-1.15 | fixed |
| Opensuse | rubygem-kramdown | tumbleweed | 2.4.0-1.1 | fixed |
| Ubuntu | ruby-kramdown | 16.04 | 1.8.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 16.04 | 1.10.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 18.04 | 1.14.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 18.04 | 1.15.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-1 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-2 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-4 | vulnerable |
| Ubuntu | ruby-kramdown | 20.04 | 1.17.0-4ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-kramdown | source | sid | 2.3.0-3 | not yet assigned | Not reported | [965305] |
| Debian | ruby-kramdown | source | forky | 2.3.0-3 | not yet assigned | Not reported | [965305] |
| Debian | ruby-kramdown | source | trixie | 2.3.0-3 | not yet assigned | Not reported | [965305] |
| Debian | ruby-kramdown | source | bookworm | 2.3.0-3 | not yet assigned | Not reported | [965305] |
| Ubuntu | ruby-kramdown | deb | 20.04 | 1.17.0-4ubuntu0.1 | Not reported | USN-4562-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | tumbleweed | 2.4.0-1.17 | Not reported | OPENSUSE-SU-2026:10352-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | tumbleweed | 2.4.0-1.12 | Not reported | OPENSUSE-SU-2024:14170-1 | Not reported |
| Opensuse | ruby3.2-rubygem-kramdown | rpm | tumbleweed | 2.4.0-1.8 | Not reported | OPENSUSE-SU-2024:13161-1 | Not reported |
| Suse | rubygem-kramdown | rpm | linux enterprise high availability extension 15 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Suse | rubygem-kramdown | rpm | linux enterprise high availability extension 15 sp1 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Suse | rubygem-kramdown | rpm | linux enterprise high availability extension 15 sp2 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Suse | rubygem-kramdown | rpm | linux enterprise high availability extension 15 sp3 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Suse | rubygem-kramdown | rpm | linux enterprise high availability extension 15 sp4 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | leap 15.3 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | leap 15.4 | 1.15.0-150000.3.3.1 | Not reported | SUSE-SU-2022:3259-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | tumbleweed | 2.4.0-1.15 | Not reported | OPENSUSE-SU-2025:15119-1 | Not reported |
| Opensuse | rubygem-kramdown | rpm | tumbleweed | 2.4.0-1.1 | Not reported | OPENSUSE-SU-2024:12038-1 | Not reported |
| Ubuntu | ruby-kramdown | deb | 20.04 | 1.17.0-4ubuntu0.1 | Not reported | UBUNTU-CVE-2020-14001 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [ruby4.0-rubygem-kramdown]Unknown
Source package: [rubygem-kramdown]
Details (1)
2.4.0-2.1· x86_64 · tumbleweedUnknown · Fixed:
2.4.0-1.1, 2.4.0-1.12, 2.4.0-1.15, 2.4.0-1.17Version impact unknown
dsa · rubygem-kramdown · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [kramdown]Fixed
Source package: [ruby-kramdown]
Details (2)
2.4.0-2· all · bookwormFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · bookworm; dsa · ruby-kramdown · debian · 12
2.4.0-2· all · bookwormFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · bookworm; dsa · ruby-kramdown · debian · 12
- [ruby-kramdown]Fixed
Details (2)
2.4.0-2· all · bookwormFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · bookworm; dsa · ruby-kramdown · debian · 12
2.4.0-2· all · bookwormFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · bookworm; dsa · ruby-kramdown · debian · 12
[Debian 13 (Trixie)]
- [kramdown]Fixed
Source package: [ruby-kramdown]
Details (2)
2.5.1-1· all · trixieFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · 13
2.5.1-1· all · trixieFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · 13
- [ruby-kramdown]Fixed
Details (2)
2.5.1-1· all · trixieFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · 13
2.5.1-1· all · trixieFixed · Fixed:
2.3.0-3dsa · ruby-kramdown · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2022_3259-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-14001]
- [https://osv.dev/vulnerability/DLA-2316-1]
- [https://osv.dev/vulnerability/DSA-4743-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:3259-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-14001]
- [https://osv.dev/vulnerability/USN-4562-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12038-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13161-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:14170-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15119-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10352-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-14001]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-14001.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]