ubuntu-cve-2025-27610
Vulnerability from osv_ubuntu
Published
2025-03-10 23:15
Modified
2026-05-20 15:17
Summary
Details
Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.13, 3.0.14, and 3.1.12, Rack::Static can serve files under the specified root: even if urls: are provided, which may expose other files under the specified root: unexpectedly. The vulnerability occurs because Rack::Static does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. By exploiting this vulnerability, an attacker can gain access to all files under the specified root: directory, provided they are able to determine then path of the file. Versions 2.2.13, 3.0.14, and 3.1.12 contain a patch for the issue. Other mitigations include removing usage of Rack::Static, or ensuring that root: points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue.
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": "librack-ruby",
"binary_version": "1.5.2-3+deb8u3ubuntu1~esm9"
},
{
"binary_name": "librack-ruby1.8",
"binary_version": "1.5.2-3+deb8u3ubuntu1~esm9"
},
{
"binary_name": "librack-ruby1.9.1",
"binary_version": "1.5.2-3+deb8u3ubuntu1~esm9"
},
{
"binary_name": "ruby-rack",
"binary_version": "1.5.2-3+deb8u3ubuntu1~esm9"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@1.5.2-3+deb8u3ubuntu1~esm9?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.5.2-3+deb8u3ubuntu1~esm9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.5.2-1",
"1.5.2-1ubuntu0.1~esm1",
"1.5.2-3+deb8u3ubuntu1~esm2",
"1.5.2-3+deb8u3ubuntu1~esm3",
"1.5.2-3+deb8u3ubuntu1~esm4",
"1.5.2-3+deb8u3ubuntu1~esm6",
"1.5.2-3+deb8u3ubuntu1~esm7",
"1.5.2-3+deb8u3ubuntu1~esm8"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "1.6.4-3ubuntu0.2+esm7"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@1.6.4-3ubuntu0.2+esm7?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.4-3ubuntu0.2+esm7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.5.2-4",
"1.6.4-2",
"1.6.4-3",
"1.6.4-3ubuntu0.1",
"1.6.4-3ubuntu0.2",
"1.6.4-3ubuntu0.2+esm1",
"1.6.4-3ubuntu0.2+esm2",
"1.6.4-3ubuntu0.2+esm4",
"1.6.4-3ubuntu0.2+esm5",
"1.6.4-3ubuntu0.2+esm6"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "1.6.4-4ubuntu0.2+esm7"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@1.6.4-4ubuntu0.2+esm7?arch=source\u0026distro=esm-apps/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.4-4ubuntu0.2+esm7"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.6.4-4",
"1.6.4-4ubuntu0.1",
"1.6.4-4ubuntu0.2",
"1.6.4-4ubuntu0.2+esm1",
"1.6.4-4ubuntu0.2+esm2",
"1.6.4-4ubuntu0.2+esm4",
"1.6.4-4ubuntu0.2+esm5",
"1.6.4-4ubuntu0.2+esm6"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "2.0.7-2ubuntu0.1+esm6"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@2.0.7-2ubuntu0.1+esm6?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.7-2ubuntu0.1+esm6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.6-3",
"2.0.7-2",
"2.0.7-2ubuntu0.1",
"2.0.7-2ubuntu0.1+esm1",
"2.0.7-2ubuntu0.1+esm2",
"2.0.7-2ubuntu0.1+esm3",
"2.0.7-2ubuntu0.1+esm4",
"2.0.7-2ubuntu0.1+esm5"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "2.1.4-5ubuntu1.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@2.1.4-5ubuntu1.1+esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.4-5ubuntu1.1+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.4-3",
"2.1.4-4",
"2.1.4-5",
"2.1.4-5ubuntu1",
"2.1.4-5ubuntu1+esm2",
"2.1.4-5ubuntu1+esm3",
"2.1.4-5ubuntu1+esm4",
"2.1.4-5ubuntu1+esm5",
"2.1.4-5ubuntu1.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "2.2.7-1ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@2.2.7-1ubuntu0.2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.2.7-1ubuntu0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.4-3",
"2.2.7-1",
"2.2.7-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "3.1.16-0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@3.1.16-0.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.16-0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.7-1.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ruby-rack",
"binary_version": "3.1.16-0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "ruby-rack",
"purl": "pkg:deb/ubuntu/ruby-rack@3.1.16-0.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.16-0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": []
}
],
"aliases": [],
"details": "Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.13, 3.0.14, and 3.1.12, `Rack::Static` can serve files under the specified `root:` even if `urls:` are provided, which may expose other files under the specified `root:` unexpectedly. The vulnerability occurs because `Rack::Static` does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. By exploiting this vulnerability, an attacker can gain access to all files under the specified `root:` directory, provided they are able to determine then path of the file. Versions 2.2.13, 3.0.14, and 3.1.12 contain a patch for the issue. Other mitigations include removing usage of `Rack::Static`, or ensuring that `root:` points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue.",
"id": "UBUNTU-CVE-2025-27610",
"modified": "2026-05-20T15:17:31Z",
"published": "2025-03-10T23:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-27610"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-27610"
},
{
"type": "REPORT",
"url": "https://github.com/rack/rack/security/advisories/GHSA-7wqh-767x-r66v"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7366-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7366-2"
}
],
"related": [
"USN-7366-1",
"USN-7366-2"
],
"schema_version": "1.7.0",
"severity": [
{
"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-2025-27610"
]
}
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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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