Bug 2511261 (CVE-2026-67861)

Summary: CVE-2026-67861 open62541: open62541: Denial of Service via UA_Client_getRemoteDataTypes component
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in open62541. A remote attacker can exploit a vulnerability in the `UA_Client_getRemoteDataTypes` component to cause a denial of service (DoS). This could make the affected system unavailable to legitimate users.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2511916    
Bug Blocks:    

Description OSIDB Bzimport 2026-08-04 22:02:14 UTC
An issue in open62541 v.1.5.5 and before allows a remote attacker to cause a denial of service via the UA_Client_getRemoteDataTypes component