CVE catalog

CVE-2026-41493

Severity: Medium · CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: May 8, 2026, 1:13:49 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.39% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	yard	sid	`0.9.45-1`	vulnerable
Debian	yard	forky	`0.9.45-1`	vulnerable
Debian	yard	trixie	`0.9.37-1`	vulnerable
Debian	yard	bookworm	`0.9.28-2+deb12u2`	vulnerable
Debian	yard	bookworm-security	`0.9.28-2+deb12u2`	vulnerable
Cpe	yard	Not reported	`0.9.36-1ubuntu0.1~esm1`	fixed
Cpe	yard-doc	Not reported	`0.9.36-1ubuntu0.1~esm1`	fixed
Cpe	yard	Not reported	Not reported	vulnerable
Cpe	yard	Not reported	`0.9.42`	fixed
Ubuntu	yard	pro	`0.9.37-1`	vulnerable
Ubuntu	yard	pro	`0.9.37-1build1`	vulnerable
Ubuntu	yard	pro	`0.9.38-1`	vulnerable
Ubuntu	yard	pro	`0.9.38-1ubuntu0.1~esm1`	fixed
Cpe	yard	Not reported	`0.9.42`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	yard	source	sid	`(unfixed)`	not yet assigned	Not reported	[1136076]
Debian	yard	source	forky	`(unfixed)`	not yet assigned	Not reported	[1136076]
Debian	yard	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1136076]
Debian	yard	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1136076]
Cpe	yard	cpe	Not reported	`0.9.36-1ubuntu0.1~esm1`	Not reported	Not reported	Not reported
Cpe	yard-doc	cpe	Not reported	`0.9.36-1ubuntu0.1~esm1`	Not reported	Not reported	Not reported
Cpe	yard	cpe	Not reported	`0.9.42`	Not reported	Not reported	Not reported
Ubuntu	yard	deb	pro	`0.9.38-1ubuntu0.1~esm1`	Not reported	USN-8394-1	Not reported
Cpe	yard	cpe	Not reported	`0.9.42`	Not reported	NVD-CVE-2026-41493	Not reported

[Debian bug #1136076]

Notes

[trixie] yard: Minor issue [bookworm] yard: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[yard]Affected
Details (4)
- 0.9.28-2+deb12u2 · all · bookworm
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm-security
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm-security
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
[yard-doc]Affected
Source package: [yard]
Details (4)
- 0.9.28-2+deb12u2 · all · bookworm
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm-security
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12
- 0.9.28-2+deb12u2 · all · bookworm-security
  Affected
  nvd · yard · debian · bookworm; nvd · yard · debian · 12

[Debian 13 (Trixie)]

[yard]Affected
Details (2)
- 0.9.37-1 · all · trixie
  Affected
  nvd · yard · debian · 13
- 0.9.37-1 · all · trixie
  Affected
  nvd · yard · debian · 13
[yard-doc]Affected
Source package: [yard]
Details (2)
- 0.9.37-1 · all · trixie
  Affected
  nvd · yard · debian · 13
- 0.9.37-1 · all · trixie
  Affected
  nvd · yard · debian · 13

Observed: Oct 26, 2026, 7:37:00 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]