UBUNTU-CVE-2026-81521

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Source

https://ubuntu.com/security/CVE-2026-81521

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-81521.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-81521

Upstream

CVE-2026-81521

Published

2026-08-27T20:18:00Z

Modified

2026-09-02T16:28:28Z

Severity

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

Summary

[none]

Details

The MongoDB Go Driver's client-level bulk write operation may accept a caller-supplied database name containing a reserved separator character without escaping it before the name is used to build the target namespace for the operation. An application that passes untrusted input as a database name could therefore have the write directed at a database and collection other than the ones it intended. Only the Client.BulkWrite API is affected.

References

Affected packages

Ubuntu:24.04:LTS / golang-mongodb-mongo-driver

Package

Name: golang-mongodb-mongo-driver
Purl: pkg:deb/ubuntu/golang-mongodb-mongo-driver?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.8.4+ds1-1ubuntu1

1.12.1+ds1-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.12.1+ds1-2",
            "binary_name": "golang-mongodb-mongo-driver-dev"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-81521.json"

Ubuntu:26.04:LTS / golang-mongodb-mongo-driver