CVE-2026-4374
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery Service) allows Serialized Data External Linking, Data Serializat...
Description
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery Service) allows Serialized Data External Linking, Data Serializat...
INFO
Published Date :
April 1, 2026, 2:16 a.m.
Last Modified :
April 21, 2026, 12:06 a.m.
Remotely Exploit :
Yes !
Source :
3f572a00-62e2-4423-959a-7ea25eff1638
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | 3f572a00-62e2-4423-959a-7ea25eff1638 | ||||
| CVSS 4.0 | HIGH | 3f572a00-62e2-4423-959a-7ea25eff1638 | ||||
| CVSS 4.0 | HIGH | 3f572a00-62e2-4423-959a-7ea25eff1638 |
Solution
- Configure XML parsers to disallow external entity references.
- Update affected RTI Connext Professional components.
- Validate input XML data for malicious constructs.
- Restrict access to sensitive data sources.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-4374.
| URL | Resource |
|---|---|
| https://www.rti.com/vulnerabilities/#cve-2026-4374 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-4374 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-4374
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-4374 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-4374 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 21, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 5.3.0 up to (including) 5.3.1.45 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.1.40 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 6.1.0 up to (including) 6.1.2.27 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.3.1.1 *cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:* versions from (including) 7.4.0 up to (excluding) 7.7.0 Added Reference Type RTI: https://www.rti.com/vulnerabilities/#cve-2026-4374 Types: Vendor Advisory -
New CVE Received by 3f572a00-62e2-4423-959a-7ea25eff1638
Apr. 01, 2026
Action Type Old Value New Value Added Description Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery Service) allows Serialized Data External Linking, Data Serializat... Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-611 Added Reference https://www.rti.com/vulnerabilities/#cve-2026-4374