CVE-2026-41493

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.

CVSS 4.0

6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-26)

CWE

CWE-22

Published

2026-05-08

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• yardoc:yard

Packages (OSV)

References

• https://github.com/lsegal/yard/releases/tag/v0.9.42
• https://github.com/lsegal/yard/security/advisories/GHSA-3jfp-46x4-xgfj

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