UBUNTU-CVE-2026-106431

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Source

https://ubuntu.com/security/CVE-2026-106431

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106431.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-106431

Upstream

CVE-2026-106431

Published

2026-10-13T00:00:00Z

Modified

2026-10-14T03:22:47Z

Severity

5.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a document ends at a specific buffer boundary. An actor who can influence the size of documents serialized by an embedding application can corrupt adjacent process memory or terminate the process. Reaching this issue requires the application to use the BSON bulk-writer API and produce a precise cumulative document size.

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-2026-106431.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-2026-106431.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-2026-106431.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-2026-106431.json"