DEBIAN-CVE-2026-84970
A numeric truncation weakness exists in the JSON parsing component of the MongoDB C++ Driver's BSON library. An actor who controls the text that an embedding application hands to the library's public JSON parsing interface, when that text is very large, can cause the library to read memory beyond the supplied buffer and return it to the caller, to silently accept only part of the input as a complete document, or to terminate the process. No MongoDB server, credentials, or non-default configuration is required; the effect is confined to the process that uses the library.
DEBIAN-CVE-2026-84970
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-84970
mongo-cxx-driver
Source reference: /affected/0/package/name
- Affected versions
- 3.10.1-1
Source reference:
/affected/0/versions3.10.2-1Source reference:
/affected/0/versions3.11.0-1Source reference:
/affected/0/versions3.4.1-1Source reference:
/affected/0/versions3.6.0-1Source reference:
/affected/0/versions3.6.1-1Source reference:
/affected/0/versions3.6.2-1Source reference:
/affected/0/versions3.6.3-1Source reference:
/affected/0/versions3.6.5-1Source reference:
/affected/0/versions3.6.6-1Source reference:
/affected/0/versions3.6.7-1Source reference:
/affected/0/versions3.7.0-1Source reference:
/affected/0/versions3.7.1-1Source reference:
/affected/0/versions3.8.0-1Source reference:
/affected/0/versions3.8.1-1Source reference:
/affected/0/versions3.9.0-1Source reference:
/affected/0/versions4.0.0-1Source reference:
/affected/0/versions4.1.4-1Source reference:
/affected/0/versions4.4.0-1Source reference:
/affected/0/versions4.5.0-1Source reference:
/affected/0/versions4.5.1-1Source reference:
/affected/0/versions - Fixed versions
- 4.5.2-1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.2-1"
}
]
}
],
"package": {
"name": "mongo-cxx-driver",
"purl": "pkg:deb/debian/mongo-cxx-driver?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.10.1-1",
"3.10.2-1",
"3.11.0-1",
"3.4.1-1",
"3.6.0-1",
"3.6.1-1",
"3.6.2-1",
"3.6.3-1",
"3.6.5-1",
"3.6.6-1",
"3.6.7-1",
"3.7.0-1",
"3.7.1-1",
"3.8.0-1",
"3.8.1-1",
"3.9.0-1",
"4.0.0-1",
"4.1.4-1",
"4.4.0-1",
"4.5.0-1",
"4.5.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84970.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58378 · Revision 1
- Added to Heist Feed
- Publisher date