HighFix available
php-phpseclib, php-phpseclib3 and 1 more products — security advisory
phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.
- Products
- php-phpseclib, php-phpseclib3, phpseclib
- Affected versions
- 1.0.16-2, 1.0.18-2, 1.0.18-2ubuntu0.1~esm1, 1.0.19-3ubuntu2, 1.0.19-3ubuntu3, 1.0.20-1, 1.0.21-2, 1.0.22-1, 1.0.23-1, 1.0.23-6, 1.0.24-1, 1.0.7-1, 1.0.8-1, 1.0.9-1, 1.0.9-1ubuntu0.1~esm1, 2.0.1-1, 2.0.1-1build1, 2.0.21-2, 2.0.23-2, 2.0.23-2ubuntu0.1~esm2, 2.0.30-2ubuntu1, 2.0.34-1, 2.0.35-1, 2.0.36-1, 2.0.36-1ubuntu0.1~esm2, 2.0.44-1, 2.0.45-1, 2.0.46-1, 2.0.47-1, 2.0.48-3, 2.0.49-1, 2.0.51-1, 2.0.6-1, 2.0.7-1, 2.0.9-1, 2.0.9-1ubuntu0.1~esm2, 3.0.10-1, 3.0.12-2, 3.0.13-1, 3.0.13-1ubuntu0.1~esm1, 3.0.21-2, 3.0.33-1, 3.0.34-1, 3.0.35-1, 3.0.37-1, 3.0.43-2, 3.0.44-1, 3.0.47-1, 3.0.49-1, 3.0.49-1ubuntu1, 3.0.57-1, 3.0.9-1
- Fixed versions
- 1.0.18-2ubuntu0.1~esm2, 1.0.20-1+deb12u3build0.22.04.1, 1.0.23-1ubuntu0.1~esm1, 1.0.24-1ubuntu0.1~esm1, 1.0.9-1ubuntu0.1~esm2, 2.0.1-1ubuntu0.1~esm1, 2.0.23-2ubuntu0.1~esm3, 2.0.36-1ubuntu0.1~esm3, 2.0.47-1ubuntu0.1~esm1, 2.0.51-1ubuntu0.1~esm1, 2.0.9-1ubuntu0.1~esm3
- CVEs
- CVE-2026-32935
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:59 UTC · Revision 1
Source evidence
phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.
osv:UBUNTU-CVE-2026-32935
php-phpseclib
Fixed versions: 2.0.1-1ubuntu0.1~esm1
php-phpseclib
Fixed versions: 2.0.9-1ubuntu0.1~esm3
phpseclib
Fixed versions: 1.0.9-1ubuntu0.1~esm2
php-phpseclib
Fixed versions: 2.0.23-2ubuntu0.1~esm3
phpseclib
Fixed versions: 1.0.18-2ubuntu0.1~esm2
phpseclib
Fixed versions: 1.0.20-1+deb12u3build0.22.04.1
php-phpseclib
Fixed versions: 2.0.36-1ubuntu0.1~esm3
php-phpseclib3
Fixed versions: Not specified
php-phpseclib3
Fixed versions: Not specified
php-phpseclib
Fixed versions: 2.0.47-1ubuntu0.1~esm1
phpseclib
Fixed versions: 1.0.23-1ubuntu0.1~esm1
php-phpseclib
Fixed versions: Not specified
php-phpseclib3
Fixed versions: Not specified
phpseclib
Fixed versions: Not specified
php-phpseclib3
Fixed versions: Not specified
php-phpseclib3
Fixed versions: Not specified
php-phpseclib
Fixed versions: 2.0.51-1ubuntu0.1~esm1
phpseclib
Fixed versions: 1.0.24-1ubuntu0.1~esm1
Complete source record
{
"id": "4e4b68a4c2a88dff3fe8737924080163d3de9411a38ca302dc55e50f2ebec286",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-32935",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-32935",
"summary": "phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.",
"evidence": "osv:UBUNTU-CVE-2026-32935",
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{
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"affected_versions": [
{
"value": "2.0.1-1",
"evidence": "/affected/0/versions"
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{
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{
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{
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],
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{
"value": "1.0.7-1",
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{
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{
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{
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],
"affected_versions": [
{
"value": "2.0.21-2",
"evidence": "/affected/3/versions"
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{
"value": "2.0.23-2",
"evidence": "/affected/3/versions"
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{
"value": "2.0.23-2ubuntu0.1~esm2",
"evidence": "/affected/3/versions"
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]
},
{
"name": {
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{
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],
"affected_versions": [
{
"value": "1.0.16-2",
"evidence": "/affected/4/versions"
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{
"value": "1.0.18-2",
"evidence": "/affected/4/versions"
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{
"value": "1.0.18-2ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
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]
},
{
"name": {
"value": "phpseclib",
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"fixed_versions": [
{
"value": "1.0.20-1+deb12u3build0.22.04.1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": [
{
"value": "1.0.19-3ubuntu2",
"evidence": "/affected/5/versions"
},
{
"value": "1.0.19-3ubuntu3",
"evidence": "/affected/5/versions"
},
{
"value": "1.0.20-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.36-1ubuntu0.1~esm3",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
"value": "2.0.30-2ubuntu1",
"evidence": "/affected/6/versions"
},
{
"value": "2.0.34-1",
"evidence": "/affected/6/versions"
},
{
"value": "2.0.35-1",
"evidence": "/affected/6/versions"
},
{
"value": "2.0.36-1",
"evidence": "/affected/6/versions"
},
{
"value": "2.0.36-1ubuntu0.1~esm2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.9-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.0.10-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.0.12-2",
"evidence": "/affected/7/versions"
},
{
"value": "3.0.13-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.0.13-1ubuntu0.1~esm1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.21-2",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.33-1",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.34-1",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.35-1",
"evidence": "/affected/8/versions"
},
{
"value": "3.0.37-1",
"evidence": "/affected/8/versions"
}
]
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.47-1ubuntu0.1~esm1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": [
{
"value": "2.0.44-1",
"evidence": "/affected/9/versions"
},
{
"value": "2.0.45-1",
"evidence": "/affected/9/versions"
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{
"value": "2.0.46-1",
"evidence": "/affected/9/versions"
},
{
"value": "2.0.47-1",
"evidence": "/affected/9/versions"
}
]
},
{
"name": {
"value": "phpseclib",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.23-1ubuntu0.1~esm1",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": [
{
"value": "1.0.21-2",
"evidence": "/affected/10/versions"
},
{
"value": "1.0.22-1",
"evidence": "/affected/10/versions"
},
{
"value": "1.0.23-1",
"evidence": "/affected/10/versions"
}
]
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "2.0.48-3",
"evidence": "/affected/11/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "3.0.43-2",
"evidence": "/affected/12/versions"
}
]
},
{
"name": {
"value": "phpseclib",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.23-6",
"evidence": "/affected/13/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.49-1ubuntu1",
"evidence": "/affected/14/versions"
},
{
"value": "3.0.57-1",
"evidence": "/affected/14/versions"
}
]
},
{
"name": {
"value": "php-phpseclib3",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.0.43-2",
"evidence": "/affected/15/versions"
},
{
"value": "3.0.44-1",
"evidence": "/affected/15/versions"
},
{
"value": "3.0.47-1",
"evidence": "/affected/15/versions"
},
{
"value": "3.0.49-1",
"evidence": "/affected/15/versions"
},
{
"value": "3.0.49-1ubuntu1",
"evidence": "/affected/15/versions"
}
]
},
{
"name": {
"value": "php-phpseclib",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.0.51-1ubuntu0.1~esm1",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": [
{
"value": "2.0.48-3",
"evidence": "/affected/16/versions"
},
{
"value": "2.0.49-1",
"evidence": "/affected/16/versions"
},
{
"value": "2.0.51-1",
"evidence": "/affected/16/versions"
}
]
},
{
"name": {
"value": "phpseclib",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.24-1ubuntu0.1~esm1",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": [
{
"value": "1.0.23-6",
"evidence": "/affected/17/versions"
},
{
"value": "1.0.24-1",
"evidence": "/affected/17/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-32935",
"aliases": [
"UBUNTU-CVE-2026-32935"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
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},
{
"type": "Ubuntu",
"score": "medium"
}
],
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{
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{
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]
}
],
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"2.0.1-1",
"2.0.1-1build1"
],
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"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
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{
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}
],
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}
},
{
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{
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]
}
],
"package": {
"name": "php-phpseclib",
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},
"versions": [
"2.0.6-1",
"2.0.7-1",
"2.0.9-1",
"2.0.9-1ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-phpseclib",
"binary_version": "2.0.9-1ubuntu0.1~esm3"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "phpseclib",
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},
"versions": [
"1.0.7-1",
"1.0.8-1",
"1.0.9-1",
"1.0.9-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-seclib",
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}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
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{
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},
{
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}
]
}
],
"package": {
"name": "php-phpseclib",
"purl": "pkg:deb/ubuntu/php-phpseclib?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"2.0.21-2",
"2.0.23-2",
"2.0.23-2ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-phpseclib",
"binary_version": "2.0.23-2ubuntu0.1~esm3"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.18-2ubuntu0.1~esm2"
}
]
}
],
"package": {
"name": "phpseclib",
"purl": "pkg:deb/ubuntu/phpseclib?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"1.0.16-2",
"1.0.18-2",
"1.0.18-2ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-seclib",
"binary_version": "1.0.18-2ubuntu0.1~esm2"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.20-1+deb12u3build0.22.04.1"
}
]
}
],
"package": {
"name": "phpseclib",
"purl": "pkg:deb/ubuntu/phpseclib?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.0.19-3ubuntu2",
"1.0.19-3ubuntu3",
"1.0.20-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-seclib",
"binary_version": "1.0.20-1+deb12u3build0.22.04.1"
}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.0.36-1ubuntu0.1~esm3"
}
]
}
],
"package": {
"name": "php-phpseclib",
"purl": "pkg:deb/ubuntu/php-phpseclib?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"2.0.30-2ubuntu1",
"2.0.34-1",
"2.0.35-1",
"2.0.36-1",
"2.0.36-1ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32935.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-phpseclib",
"binary_version": "2.0.36-1ubuntu0.1~esm3"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "php-phpseclib3",
"purl": "pkg:deb/ubuntu/php-phpseclib3?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"3.0.9-1",
"3.0.10-1",
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],
"modified": "2026-10-17T12:59:59.513118854Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-32935",
"https://www.cve.org/CVERecord?id=CVE-2026-32935",
"https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788",
"https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg",
"https://ubuntu.com/security/notices/USN-8769-1",
"https://ubuntu.com/security/notices/USN-8830-1"
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},
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"value": "CVE-2026-32935",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360074,
"published_at": "2026-03-20T03:16:00+00:00"
}