ubuntu-cve-2026-41493
Vulnerability from osv_ubuntu
Published
2026-05-08 14:16
Modified
2026-06-10 16:12
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.8.7.6+git20160220-3ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.8.7.6+git20160220-3ubuntu0.1~esm2?arch=source\u0026distro=esm-apps-legacy/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.8.7.6+git20160220-3ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.8.7.6-1",
"0.8.7.6+git20160220-3",
"0.8.7.6+git20160220-3ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.12-2ubuntu0.1~esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.12-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.12-2ubuntu0.1~esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.9-1",
"0.9.12-1",
"0.9.12-1ubuntu3",
"0.9.12-2",
"0.9.12-2ubuntu0.1~esm1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.24-1+deb11u1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.24-1+deb11u1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.24-1+deb11u1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.16-1",
"0.9.20-1",
"0.9.24-1",
"0.9.24-1+deb11u1build0.20.04.1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.26-1ubuntu0.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.26-1ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.26-1ubuntu0.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.24-1",
"0.9.26-1",
"0.9.26-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.36-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.36-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.36-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.28-2",
"0.9.34-1",
"0.9.35-1",
"0.9.36-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.37-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.37-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.37-1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "yard",
"binary_version": "0.9.38-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "yard",
"purl": "pkg:deb/ubuntu/yard@0.9.38-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.38-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.9.37-1",
"0.9.37-1build1",
"0.9.38-1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2026-41493",
"modified": "2026-06-10T16:12:51Z",
"published": "2026-05-08T14:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41493"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41493"
},
{
"type": "REPORT",
"url": "https://github.com/lsegal/yard/security/advisories/GHSA-3jfp-46x4-xgfj"
},
{
"type": "REPORT",
"url": "https://github.com/lsegal/yard/releases/tag/v0.9.42"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8394-1"
}
],
"related": [
"USN-8394-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-41493"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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