HighFix available
php-phpseclib, php-phpseclib3 and 1 more products — security advisory
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
- Products
- php-phpseclib, php-phpseclib3, phpseclib
- Affected versions
- 1.0.20-1, 1.0.20-1+deb12u1, 1.0.20-1+deb12u2, 2.0.42-1, 2.0.42-1+deb12u1, 2.0.42-1+deb12u2, 3.0.19-1, 3.0.19-1+deb12u1, 3.0.19-1+deb12u2, 3.0.19-1+deb12u3
- Fixed versions
- 1.0.20-1+deb12u3, 1.0.22-1, 2.0.42-1+deb12u3, 2.0.46-1, 3.0.19-1+deb12u4, 3.0.33-1
- CVEs
- CVE-2023-52892
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:13 UTC · Revision 1
Source evidence
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
osv:DEBIAN-CVE-2023-52892
php-phpseclib
Fixed versions: 2.0.42-1+deb12u3
php-phpseclib
Fixed versions: 2.0.46-1
php-phpseclib
Fixed versions: 2.0.46-1
php-phpseclib3
Fixed versions: 3.0.19-1+deb12u4
php-phpseclib3
Fixed versions: 3.0.33-1
php-phpseclib3
Fixed versions: 3.0.33-1
phpseclib
Fixed versions: 1.0.20-1+deb12u3
phpseclib
Fixed versions: 1.0.22-1
Complete source record
{
"id": "93d6b5391d5715fc49832197e79035f7681ef5715ad3b696fc75a361f15cdac2",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-52892",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-52892",
"summary": "In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.",
"evidence": "osv:DEBIAN-CVE-2023-52892",
"products": [
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.42-1+deb12u3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "2.0.42-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.42-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.42-1+deb12u2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.46-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.46-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.19-1+deb12u4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "3.0.19-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.19-1+deb12u1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.19-1+deb12u2",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.19-1+deb12u3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.33-1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.0.33-1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "phpseclib",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.20-1+deb12u3",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
"value": "1.0.20-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.0.20-1+deb12u1",
"evidence": "/affected/6/versions"
},
{
"value": "1.0.20-1+deb12u2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "phpseclib",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.22-1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-52892",
"aliases": [
"DEBIAN-CVE-2023-52892"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.42-1+deb12u3"
}
]
}
],
"package": {
"name": "php-phpseclib",
"purl": "pkg:deb/debian/php-phpseclib?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.0.42-1",
"2.0.42-1+deb12u1",
"2.0.42-1+deb12u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.46-1"
}
]
}
],
"package": {
"name": "php-phpseclib",
"purl": "pkg:deb/debian/php-phpseclib?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.46-1"
}
]
}
],
"package": {
"name": "php-phpseclib",
"purl": "pkg:deb/debian/php-phpseclib?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.19-1+deb12u4"
}
]
}
],
"package": {
"name": "php-phpseclib3",
"purl": "pkg:deb/debian/php-phpseclib3?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.0.19-1",
"3.0.19-1+deb12u1",
"3.0.19-1+deb12u2",
"3.0.19-1+deb12u3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.33-1"
}
]
}
],
"package": {
"name": "php-phpseclib3",
"purl": "pkg:deb/debian/php-phpseclib3?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.33-1"
}
]
}
],
"package": {
"name": "php-phpseclib3",
"purl": "pkg:deb/debian/php-phpseclib3?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.20-1+deb12u3"
}
]
}
],
"package": {
"name": "phpseclib",
"purl": "pkg:deb/debian/phpseclib?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.0.20-1",
"1.0.20-1+deb12u1",
"1.0.20-1+deb12u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.22-1"
}
]
}
],
"package": {
"name": "phpseclib",
"purl": "pkg:deb/debian/phpseclib?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52892.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:51.676675025Z",
"provider": "osv",
"upstream": [
"CVE-2023-52892"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-52892"
]
},
"related_cves": [
{
"value": "CVE-2023-52892",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 457054,
"published_at": "2024-06-27T22:15:10.277+00:00"
}