Skip to content
Fencer Vulns
high 7.5

CVE-2019-1020001 json

Path Traversal vulnerability that affects yard

published 2019-07-02 7 y ago modified 2026-09-10 1 mo ago also GHSA-xfhh-rx56-rxcr , EUVD-2019-0611

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

yard before 0.9.20 allows path traversal.

Patch / fix

  • rubygems yard 0.9.20
  • yardoc yard 0.9.20
  • yard Debian 14, Debian 13, Debian 12 0.9.20-1

debian advisories DEBIAN-CVE-2019-1020001

  • yard Ubuntu Pro 18.04 LTS 0.9.12-2ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2019-1020001

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-1020001 updated cvss 8.8

rubygem-yard: Arbitrary path traversal and file access in yard server

  • Red Hat OpenStack Platform 16.1 puppet-dns Red Hat OpenStack Platform 16.2 puppet-dns Red Hat Satellite 6 foreman-installer, puppet-agent-yard, foreman-installer-katello
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.33% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
rubygems yard
<0.9.20
0.9.20

Affected products

  • yard yard

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.