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Connext Professional · Vulnerability

CVSS 4.0 8.8 HIGHCVSS 4.0 7.0 HIGHCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-4374

Published

Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing Service,Cloud Discovery Service,Observability Collector) allows Serialized Data External Linking, Data Serialization External Entities Blowup. This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.2.34, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-4374

Published

connext_professional

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "modules": [
                        "Recording Service",
                        "Routing Service",
                        "Queueing Service",
                        "Cloud Discovery Service",
                        "Observability Collector"
                    ],
                    "product": "Connext Professional",
                    "packageName": "connext_professional",
                    "packageURL": "pkg:generic/connext_professional",
                    "vendor": "RTI",
                    "versions": [
                        {
                            "lessThan": "7.7.0",
                            "status": "affected",
                            "version": "7.4.0",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "7.3.1.1",
                            "status": "affected",
                            "version": "7.0.0",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "6.1.2.34",
                            "status": "affected",
                            "version": "6.1.0",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "6.0.*",
                            "status": "affected",
                            "version": "6.0.0",
                            "versionType": "custom"
                        },
                        {
                            "lessThan": "5.3.*",
                            "status": "affected",
                            "version": "5.3.0",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 12 Nov 22:49 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current