UBUNTU-CVE-2026-67870

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Source

https://ubuntu.com/security/CVE-2026-67870

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67870.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-67870

Upstream

CVE-2026-67870

Published

2026-08-06T00:00:00Z

Modified

2026-08-07T17:45:28.168337858Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

In open62541 v1.5.5, the server-side AddReferences implementation contains an incomplete validation flaw for non-local ExpandedNodeId targets. A remote attacker can send a crafted AddReferencesRequest with an empty targetServerUri and a non-zero targetNodeId.serverIndex, causing the target node pointer to remain NULL while execution continues.

References

Affected packages

Ubuntu:26.04:LTS / open62541

Package

Name: open62541
Purl: pkg:deb/ubuntu/open62541?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.11.1-1

1.4.11.1-1build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1.4.11.1-1build1",
            "binary_name": "libopen62541-1.4"
        },
        {
            "binary_version": "1.4.11.1-1build1",
            "binary_name": "libopen62541-1.4-tools"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67870.json"