DEBIAN-CVE-2026-84971
Improper handling of an unexpected value size in the decryption path of a client-side encryption library can cause a failed internal check that terminates the process using the library. A party able to place a suitably formed encrypted value where an application will decrypt it, or able to control the responses the application receives, may cause that application to stop running.
DEBIAN-CVE-2026-84971
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-2026-84971
libmongocrypt
Source reference: /affected/0/package/name
- Affected versions
- 1.10.0-1
Source reference:
/affected/0/versions1.10.1-1Source reference:
/affected/0/versions1.11.0-1Source reference:
/affected/0/versions1.12.0-1Source reference:
/affected/0/versions1.13.0-1Source reference:
/affected/0/versions1.13.1-1Source reference:
/affected/0/versions1.13.2-1Source reference:
/affected/0/versions1.16.0-1Source reference:
/affected/0/versions1.17.0-1Source reference:
/affected/0/versions1.17.3-1Source reference:
/affected/0/versions1.18.1-1Source reference:
/affected/0/versions1.18.2-1Source reference:
/affected/0/versions1.19.0-1Source reference:
/affected/0/versions1.19.1-1Source reference:
/affected/0/versions1.20.0-1Source reference:
/affected/0/versions1.20.1-1Source reference:
/affected/0/versions1.20.2-1Source reference:
/affected/0/versions1.20.3-1Source reference:
/affected/0/versions1.20.4-1Source reference:
/affected/0/versions1.7.2-1Source reference:
/affected/0/versions1.8.2-1Source reference:
/affected/0/versions1.8.4-1Source reference:
/affected/0/versions1.9.1-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libmongocrypt
Source reference: /affected/1/package/name
- Affected versions
- 1.13.2-1
Source reference:
/affected/1/versions1.13.2-1+deb13u1Source reference:
/affected/1/versions1.16.0-1Source reference:
/affected/1/versions1.17.0-1Source reference:
/affected/1/versions1.17.3-1Source reference:
/affected/1/versions1.18.1-1Source reference:
/affected/1/versions1.18.2-1Source reference:
/affected/1/versions1.19.0-1Source reference:
/affected/1/versions1.19.1-1Source reference:
/affected/1/versions1.20.0-1Source reference:
/affected/1/versions1.20.1-1Source reference:
/affected/1/versions1.20.2-1Source reference:
/affected/1/versions1.20.3-1Source reference:
/affected/1/versions1.20.4-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libmongocrypt
Source reference: /affected/2/package/name
- Affected versions
- 1.13.2-1
Source reference:
/affected/2/versions1.16.0-1Source reference:
/affected/2/versions1.17.0-1Source reference:
/affected/2/versions1.17.3-1Source reference:
/affected/2/versions1.18.1-1Source reference:
/affected/2/versions1.18.2-1Source reference:
/affected/2/versions1.19.0-1Source reference:
/affected/2/versions1.19.1-1Source reference:
/affected/2/versions1.20.0-1Source reference:
/affected/2/versions1.20.1-1Source reference:
/affected/2/versions1.20.2-1Source reference:
/affected/2/versions1.20.3-1Source reference:
/affected/2/versions - Fixed versions
- 1.20.4-1
Source reference:
/affected/2/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"
}
]
}
],
"package": {
"name": "libmongocrypt",
"purl": "pkg:deb/debian/libmongocrypt?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.10.0-1",
"1.10.1-1",
"1.11.0-1",
"1.12.0-1",
"1.13.0-1",
"1.13.1-1",
"1.13.2-1",
"1.16.0-1",
"1.17.0-1",
"1.17.3-1",
"1.18.1-1",
"1.18.2-1",
"1.19.0-1",
"1.19.1-1",
"1.20.0-1",
"1.20.1-1",
"1.20.2-1",
"1.20.3-1",
"1.20.4-1",
"1.7.2-1",
"1.8.2-1",
"1.8.4-1",
"1.9.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84971.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmongocrypt",
"purl": "pkg:deb/debian/libmongocrypt?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.13.2-1",
"1.13.2-1+deb13u1",
"1.16.0-1",
"1.17.0-1",
"1.17.3-1",
"1.18.1-1",
"1.18.2-1",
"1.19.0-1",
"1.19.1-1",
"1.20.0-1",
"1.20.1-1",
"1.20.2-1",
"1.20.3-1",
"1.20.4-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84971.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-1"
}
]
}
],
"package": {
"name": "libmongocrypt",
"purl": "pkg:deb/debian/libmongocrypt?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.13.2-1",
"1.16.0-1",
"1.17.0-1",
"1.17.3-1",
"1.18.1-1",
"1.18.2-1",
"1.19.0-1",
"1.19.1-1",
"1.20.0-1",
"1.20.1-1",
"1.20.2-1",
"1.20.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84971.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58377 · Revision 1
- Added to Heist Feed
- Publisher date