Medium
php-mongodb — security advisory
An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.
- Products
- php-mongodb
- Affected versions
- 1.1.2-2~ubuntu1, 1.1.5-1~build1, 1.11.1+1.9.2+1.7.5-4, 1.12.0+1.9.2+1.7.5-3, 1.12.0+1.9.2+1.7.5-4, 1.15.0+1.11.1+1.9.2+1.7.5-1build1, 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu1, 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu2, 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu3, 1.2.3-1build1, 1.3.4-1build1, 1.5.5-1build1, 1.6.1-4, 1.6.1-4build1, 1.9.0+1.7.5-2build2, 2.1.0-1, 2.1.7-0ubuntu1, 2.1.7-0ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-84968
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:24 UTC · Revision 1
Source evidence
An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.
osv:UBUNTU-CVE-2026-84968
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
php-mongodb
Fixed versions: Not specified
Complete source record
{
"id": "30a2ee80ba49beb01a315271f8a2de1718d3f3d1f2bd864682c2461727bb6e32",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-84968",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-84968",
"summary": "An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.",
"evidence": "osv:UBUNTU-CVE-2026-84968",
"products": [
{
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"value": "php-mongodb",
"evidence": "/affected/0/package/name"
},
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"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.2-2~ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.1.5-1~build1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
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{
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},
{
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},
{
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"evidence": "/affected/3/package/name"
},
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"evidence": "/affected/3/versions"
},
{
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"evidence": "/affected/3/versions"
},
{
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"evidence": "/affected/3/versions"
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{
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{
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"evidence": "/affected/4/versions"
},
{
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"evidence": "/affected/4/versions"
},
{
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"evidence": "/affected/4/versions"
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]
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
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{
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"evidence": "/affected/5/versions"
},
{
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"evidence": "/affected/5/versions"
}
]
},
{
"name": {
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"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.0-1",
"evidence": "/affected/6/versions"
},
{
"value": "2.1.7-0ubuntu1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-84968",
"aliases": [
"UBUNTU-CVE-2026-84968"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "CVSS_V4",
"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": "Ubuntu",
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}
],
"affected": [
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"events": [
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}
]
}
],
"package": {
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"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.1.2-2~ubuntu1",
"1.1.5-1~build1"
],
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},
"ecosystem_specific": {
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{
"binary_name": "php-mongodb",
"binary_version": "1.1.5-1~build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/php-mongodb?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
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"1.3.4-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84968.json"
},
"ecosystem_specific": {
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{
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"binary_version": "1.3.4-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/php-mongodb?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
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"1.6.1-4",
"1.6.1-4build1"
],
"database_specific": {
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},
"ecosystem_specific": {
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},
{
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"package": {
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"purl": "pkg:deb/ubuntu/php-mongodb?arch=source&distro=jammy",
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},
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},
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],
"modified": "2026-10-17T13:01:13.472749777Z",
"provider": "osv",
"upstream": [
"CVE-2026-84968"
],
"references": [
"https://ubuntu.com/security/CVE-2026-84968",
"https://www.cve.org/CVERecord?id=CVE-2026-84968",
"https://jira.mongodb.org/browse/PHPC-2744"
]
},
"related_cves": [
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"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361298,
"published_at": "2026-09-03T18:17:00+00:00"
}