CVE-2026-4374
CRITICAL WAF: High
CVSS 9.1
Published: 2026-04-01
CWE-611
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Cloud Discovery Service, Recording Service, Routing Service, Queueing 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 7.1.0 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.*.
WAF Coverage Analysis
XML External Entity (XXE)
High WAF Coverage
OWASP: A05:2021 Security Misconfiguration
941xxx - XSS / XXE
Affected Software
| Vendor | Product | Version |
|---|---|---|
| rti | connext_professional | 5.3.0 - 5.3.1.45 |
| rti | connext_professional | 6.0.0 - 6.0.1.40 |
| rti | connext_professional | 6.1.0 - 6.1.2.27 |
| rti | connext_professional | 7.0.0 - 7.3.1.1 |
| rti | connext_professional | 7.4.0 - 7.7.0 |
References
- www.rti.com (Vendor Advisory)