PatchTheCVECVE-2019-1020001: yard before 0.9.20 allows path traversal.
52
This month
HIGH 7.5REMOTEUPGRADE
CVE-2019-1020001 is a high-severity flaw (CVSS 7.5) affecting yard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
yard before 0.9.20 allows path traversal.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.3% (top 16%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2019-07-29 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
yardoc yard UPGRADE
Affected: < 0.9.20
Fixed in: 0.9.20
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy yard || rpm -q yard || yard --version
2. UPGRADE to 0.9.20 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade yard
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade yard
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-1020001?
yard: upgrade to 0.9.20. Exact commands for each OS are on this page.
Is CVE-2019-1020001 being exploited?
CVE-2019-1020001 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-1020001 affect?
CVE-2019-1020001 affects yard. Severity is high (CVSS 7.5). yard before 0.9.20 allows path traversal.
How urgent is CVE-2019-1020001?
Priority 52/100. High severity; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2026-41493 HIGH 7.5 UPGRADE YARD is a Ruby Documentation tool
- CVE-2024-27285 MEDIUM 5.4 UPGRADE MITIGATE YARD is a Ruby Documentation tool