High
php-mongodb — security advisory
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
- 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-2026-106432
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:58 UTC · Revision 1
Source evidence
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
osv:UBUNTU-CVE-2026-106432
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": "c752ef093f538f915cbc5bea546762978fed1bf3fc293e0771bfd15eb5a2a862",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-106432",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-106432",
"summary": "The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.",
"evidence": "osv:UBUNTU-CVE-2026-106432",
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{
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]
}
],
"severity": "high",
"structured": {
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"aliases": [
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],
"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L"
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"purl": "pkg:deb/ubuntu/php-mongodb?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
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"database_specific": {
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},
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],
"modified": "2026-10-17T12:58:00.081815813Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-106432",
"https://www.cve.org/CVERecord?id=CVE-2026-106432",
"https://jira.mongodb.org/browse/PHPC-2741"
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"source_id": "core-osv",
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"published_at": "2026-10-08T20:17:00+00:00"
}