CVE-2026-67870
Critical · 9.8CVSS
9.8
EPSS
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Published
Aug 6, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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Related vulnerabilities
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