UBUNTU-CVE-2026-120678

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Source
https://ubuntu.com/security/CVE-2026-120678
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-120678
Upstream
  • CVE-2026-120678
Published
2026-11-03T19:17:00Z
Modified
2026-11-05T11:46:17Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A memory management flaw in the MongoDB C Driver's handling of compressed responses may cause the client library to hold on to memory that is never released. An unauthenticated party that controls the database endpoint a client application connects to may cause repeated, unbounded memory growth in that application, which may result in the application becoming unavailable. No credentials, transport security settings, or user interaction are required.

References

Affected packages

Ubuntu:Pro:20.04:LTS / mongo-c-driver

Package

Name
mongo-c-driver
Purl
pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.15.0-1
1.15.1-1
1.15.2-1
1.16.0-1
1.16.1-1
1.16.1-1build1
1.16.1-1build2
1.16.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbson-1.0-0",
            "binary_version": "1.16.1-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmongoc-1.0-0",
            "binary_version": "1.16.1-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json"

Ubuntu:Pro:22.04:LTS / mongo-c-driver

Package

Name
mongo-c-driver
Purl
pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.18.0-1
1.19.1-1
1.19.2-1
1.20.0-1
1.20.0-1build1
1.20.1-1
1.21.0-1
1.21.0-1build1
1.21.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbson-1.0-0",
            "binary_version": "1.21.0-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libmongoc-1.0-0",
            "binary_version": "1.21.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json"

Ubuntu:Pro:24.04:LTS / mongo-c-driver

Package

Name
mongo-c-driver
Purl
pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.24.3-1
1.24.4-1
1.25.1-1
1.25.2-1
1.25.4-1
1.26.0-1
1.26.0-1.1ubuntu1
1.26.0-1.1ubuntu2
1.26.0-1.1ubuntu2+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbson-1.0-0t64",
            "binary_version": "1.26.0-1.1ubuntu2+esm1"
        },
        {
            "binary_name": "libmongoc-1.0-0t64",
            "binary_version": "1.26.0-1.1ubuntu2+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json"

Ubuntu:26.10 / mongo-c-driver

Package

Name
mongo-c-driver
Purl
pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.2.2-1
2.3.1-1
2.3.2-1
2.3.3-1build1
2.5.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbson2-2",
            "binary_version": "2.5.0-1"
        },
        {
            "binary_name": "libmongoc2-2",
            "binary_version": "2.5.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json"

Ubuntu:26.04:LTS / mongo-c-driver

Package

Name
mongo-c-driver
Purl
pkg:deb/ubuntu/mongo-c-driver?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.30.4-1ubuntu1
2.*
2.2.0-1
2.2.1-1
2.2.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libbson2-2",
            "binary_version": "2.2.2-1"
        },
        {
            "binary_name": "libmongoc2-2",
            "binary_version": "2.2.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-120678.json"