CVE-2026-41493
yard: Possible arbitrary path traversal and file access via yard server
7.5
HIGH
CVSS 3.1
EPSS 0.39%
Description
YARD is a Ruby Documentation tool. Prior to version 0.9.42, a path traversal vulnerability was discovered in YARD when using yard server to serve documentation. This bug would allow unsanitized HTTP requests to access arbitrary files on the machine of a yard server host under certain conditions. This issue has been patched in version 0.9.42.
How to fix CVE-2026-41493
To remediate CVE-2026-41493, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 0.9.42 or later
Is CVE-2026-41493 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 0.9.42
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |