This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-67870 →

UBUNTU-CVE-2026-67870

In open62541 v1.5.5, the server-side AddReferences implementation contains an incomplete validation flaw for non-local ExpandedNodeId targets. A remot...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:26.10 open62541

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Ubuntu:26.04:LTS open62541

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

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