CVE-2026-41493

yard: Possible arbitrary path traversal and file access via yard server

CVSS 6.9 MEDIUMEPSS 0.4%CWE-22

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

08 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

Affected products

lsegal · yard

References

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