Medium
puppet, puppetserver — security advisory
A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.
- Products
- puppet, puppetserver
- Affected versions
- 3.2.4-2ubuntu2, 3.3.1-1ubuntu1, 3.3.1-1ubuntu2, 3.3.1-1ubuntu3, 3.4.2-1, 3.4.3-1, 3.4.3-1ubuntu1, 3.4.3-1ubuntu1.1, 3.4.3-1ubuntu1.2, 3.4.3-1ubuntu1.3, 3.7.2-5ubuntu2, 3.8.4-1ubuntu1, 3.8.5-1ubuntu1, 3.8.5-2, 3.8.5-2ubuntu0.1, 3.8.5-2ubuntu0.1+esm1, 4.10.4-2ubuntu1, 4.10.4-2ubuntu2, 4.10.4-2ubuntu3, 5.4.0-2ubuntu3, 5.5.10-4ubuntu3, 5.5.22-1ubuntu1, 5.5.22-4, 5.5.22-4ubuntu0.2, 7.9.5-2, 8.4.0-1, 8.7.0-3, 8.7.0-6, 8.7.0-6ubuntu1, 8.7.0-6ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2023-1894
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:44 UTC · Revision 1
Source evidence
A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.
osv:UBUNTU-CVE-2023-1894
puppet
Fixed versions: Not specified
puppet
Fixed versions: Not specified
puppet
Fixed versions: Not specified
puppet
Fixed versions: Not specified
puppet
Fixed versions: Not specified
puppetserver
Fixed versions: Not specified
puppetserver
Fixed versions: Not specified
puppetserver
Fixed versions: Not specified
puppetserver
Fixed versions: Not specified
Complete source record
{
"id": "c339716584b45e4a9371b428576a4c7e36b5891463626c03f5e363bcf3325d58",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-1894",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-1894",
"summary": "A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.",
"evidence": "osv:UBUNTU-CVE-2023-1894",
"products": [
{
"name": {
"value": "puppet",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.2.4-2ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "3.3.1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "3.3.1-1ubuntu2",
"evidence": "/affected/0/versions"
},
{
"value": "3.3.1-1ubuntu3",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.3-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.3-1ubuntu1.1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.3-1ubuntu1.2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.3-1ubuntu1.3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "puppet",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.7.2-5ubuntu2",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.4-1ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.5-1ubuntu1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.5-2",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.5-2ubuntu0.1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.5-2ubuntu0.1+esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "puppet",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.10.4-2ubuntu1",
"evidence": "/affected/2/versions"
},
{
"value": "4.10.4-2ubuntu2",
"evidence": "/affected/2/versions"
},
{
"value": "4.10.4-2ubuntu3",
"evidence": "/affected/2/versions"
},
{
"value": "5.4.0-2ubuntu3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "puppet",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.0-2ubuntu3",
"evidence": "/affected/3/versions"
},
{
"value": "5.5.10-4ubuntu3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "puppet",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.5.22-1ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "5.5.22-4",
"evidence": "/affected/4/versions"
},
{
"value": "5.5.22-4ubuntu0.2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "puppetserver",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "7.9.5-2",
"evidence": "/affected/5/versions"
},
{
"value": "8.4.0-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "puppetserver",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.7.0-3",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "puppetserver",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.7.0-6ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "8.7.0-6ubuntu2",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "puppetserver",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "8.7.0-3",
"evidence": "/affected/8/versions"
},
{
"value": "8.7.0-6",
"evidence": "/affected/8/versions"
},
{
"value": "8.7.0-6ubuntu1",
"evidence": "/affected/8/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2023-1894",
"aliases": [
"UBUNTU-CVE-2023-1894"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppet",
"purl": "pkg:deb/ubuntu/puppet?arch=source&distro=trusty",
"ecosystem": "Ubuntu:14.04:LTS"
},
"versions": [
"3.2.4-2ubuntu2",
"3.3.1-1ubuntu1",
"3.3.1-1ubuntu2",
"3.3.1-1ubuntu3",
"3.4.2-1",
"3.4.3-1",
"3.4.3-1ubuntu1",
"3.4.3-1ubuntu1.1",
"3.4.3-1ubuntu1.2",
"3.4.3-1ubuntu1.3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppet-common",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppet-el",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppet-testsuite",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppetmaster",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppetmaster-common",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "puppetmaster-passenger",
"binary_version": "3.4.3-1ubuntu1.3"
},
{
"binary_name": "vim-puppet",
"binary_version": "3.4.3-1ubuntu1.3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppet",
"purl": "pkg:deb/ubuntu/puppet?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"3.7.2-5ubuntu2",
"3.8.4-1ubuntu1",
"3.8.5-1ubuntu1",
"3.8.5-2",
"3.8.5-2ubuntu0.1",
"3.8.5-2ubuntu0.1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppet-common",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppet-el",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppet-testsuite",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppetmaster",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppetmaster-common",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "puppetmaster-passenger",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
},
{
"binary_name": "vim-puppet",
"binary_version": "3.8.5-2ubuntu0.1+esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppet",
"purl": "pkg:deb/ubuntu/puppet?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"4.10.4-2ubuntu1",
"4.10.4-2ubuntu2",
"4.10.4-2ubuntu3",
"5.4.0-2ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet",
"binary_version": "5.4.0-2ubuntu3"
},
{
"binary_name": "puppet-common",
"binary_version": "5.4.0-2ubuntu3"
},
{
"binary_name": "puppet-master",
"binary_version": "5.4.0-2ubuntu3"
},
{
"binary_name": "puppet-master-passenger",
"binary_version": "5.4.0-2ubuntu3"
},
{
"binary_name": "puppetmaster",
"binary_version": "5.4.0-2ubuntu3"
},
{
"binary_name": "puppetmaster-passenger",
"binary_version": "5.4.0-2ubuntu3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppet",
"purl": "pkg:deb/ubuntu/puppet?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"5.4.0-2ubuntu3",
"5.5.10-4ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet",
"binary_version": "5.5.10-4ubuntu3"
},
{
"binary_name": "puppet-common",
"binary_version": "5.5.10-4ubuntu3"
},
{
"binary_name": "puppet-master",
"binary_version": "5.5.10-4ubuntu3"
},
{
"binary_name": "puppet-master-passenger",
"binary_version": "5.5.10-4ubuntu3"
},
{
"binary_name": "puppetmaster",
"binary_version": "5.5.10-4ubuntu3"
},
{
"binary_name": "puppetmaster-passenger",
"binary_version": "5.5.10-4ubuntu3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppet",
"purl": "pkg:deb/ubuntu/puppet?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"5.5.22-1ubuntu1",
"5.5.22-4",
"5.5.22-4ubuntu0.2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet",
"binary_version": "5.5.22-4ubuntu0.2"
},
{
"binary_name": "puppet-master",
"binary_version": "5.5.22-4ubuntu0.2"
},
{
"binary_name": "puppet-master-passenger",
"binary_version": "5.5.22-4ubuntu0.2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppetserver",
"purl": "pkg:deb/ubuntu/puppetserver?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"7.9.5-2",
"8.4.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppet-master",
"binary_version": "8.4.0-1"
},
{
"binary_name": "puppet-master-passenger",
"binary_version": "8.4.0-1"
},
{
"binary_name": "puppetserver",
"binary_version": "8.4.0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppetserver",
"purl": "pkg:deb/ubuntu/puppetserver?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"8.7.0-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppetserver",
"binary_version": "8.7.0-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppetserver",
"purl": "pkg:deb/ubuntu/puppetserver?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"8.7.0-6ubuntu1",
"8.7.0-6ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppetserver",
"binary_version": "8.7.0-6ubuntu2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "puppetserver",
"purl": "pkg:deb/ubuntu/puppetserver?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"8.7.0-3",
"8.7.0-6",
"8.7.0-6ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "puppetserver",
"binary_version": "8.7.0-6ubuntu1"
}
]
}
}
],
"modified": "2026-10-17T12:56:00.429010555Z",
"provider": "osv",
"upstream": [
"CVE-2023-1894"
],
"references": [
"https://ubuntu.com/security/CVE-2023-1894",
"https://www.puppet.com/security/cve/cve-2023-1894-puppet-server-redos",
"https://github.com/puppetlabs/puppetserver/pull/2700",
"https://github.com/puppetlabs/puppetserver/commit/545998b71baf70e35dc60c287f2cb2fc11ef9be2",
"https://github.com/puppetlabs/puppetserver/commit/9e0239c19bc852b98c1a63fb33998de7eae388dc",
"https://www.cve.org/CVERecord?id=CVE-2023-1894"
]
},
"related_cves": [
{
"value": "CVE-2023-1894",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 354543,
"published_at": "2023-05-04T23:15:00+00:00"
}