What is the CVSS score of EUVD-2026-26399?

EUVD-2026-26399 has a CVSS 3.1 base score of 5.0 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

SpringBlade EUVD-2026-26399

| CVE-2026-36764 MEDIUM

Server-Side Request Forgery (SSRF) (CWE-918)

2026-04-30 cve@mitre.org

SSRF

5.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.0 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Apr 30, 2026 - 19:30 vuln.today

CVSS changed

Apr 30, 2026 - 18:22 NVD

5.0 (MEDIUM)

EUVD ID Assigned

Apr 30, 2026 - 17:22 euvd

EUVD-2026-26399

Analysis Generated

Apr 30, 2026 - 17:22 vuln.today

CVE Published

Apr 30, 2026 - 17:16 nvd

MEDIUM 5.0

DescriptionCVE.org

A Server-Side Request Forgery (SSRF) in the /ureport/datasource/testConnection endpoint of SpringBlade v4.8.0 allows authenticated attackers to scan internal resources via a crafted GET request.

AnalysisAI

Server-side request forgery in SpringBlade v4.8.0 allows authenticated network attackers to scan internal resources by sending crafted GET requests to the /ureport/datasource/testConnection endpoint, enabling reconnaissance of non-routable or restricted-access network segments. The vulnerability affects confidentiality but requires valid authentication credentials to exploit.

Technical ContextAI

SpringBlade is a Java-based rapid application development framework. The vulnerability resides in the UReport datasource testing functionality, specifically the /ureport/datasource/testConnection endpoint which accepts user-supplied parameters in GET requests without proper validation of destination URLs. The endpoint likely constructs HTTP requests to test datasource connectivity, but fails to restrict requests to external or sensitive internal network ranges (CWE-918: Server-Side Request Forgery). This allows an authenticated user to enumerate internal infrastructure by forcing the server to initiate connections to arbitrary hosts and interpret the response.

RemediationAI

Apply a patched version of SpringBlade released after v4.8.0 if available from the vendor repository (https://github.com/chillzhuang/SpringBlade). If no patch is released, implement URL validation on the /ureport/datasource/testConnection endpoint to reject requests targeting internal IP ranges (RFC 1918 private ranges 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16), loopback addresses (127.0.0.0/8), and link-local ranges (169.254.0.0/16). Disable or restrict access to the UReport datasource testing feature to administrative users only, rather than all authenticated users. Monitor outbound HTTP/HTTPS connections from the SpringBlade application server for unexpected destinations. Configure network segmentation to limit the application's ability to reach sensitive internal services such as cloud metadata endpoints, internal databases, or management interfaces.