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Java EUVD-2026-18518

| CVE-2026-5418 MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2026-04-02 VulDB
5.5
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
CVSS changed
Apr 29, 2026 - 01:11 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
PoC Detected
Apr 03, 2026 - 16:10 vuln.today
Public exploit code
EUVD ID Assigned
Apr 02, 2026 - 19:01 euvd
EUVD-2026-18518
Analysis Generated
Apr 02, 2026 - 19:01 vuln.today
CVE Published
Apr 02, 2026 - 18:30 nvd
MEDIUM 6.9

DescriptionCVE.org

A vulnerability was identified in appsmithorg appsmith up to 1.97. Impacted is the function computeDisallowedHosts of the file app/server/appsmith-interfaces/src/main/java/com/appsmith/util/WebClientUtils.java of the component Dashboard. Such manipulation leads to server-side request forgery. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.99 is recommended to address this issue. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

AnalysisAI

Server-side request forgery (SSRF) in Appsmith Dashboard component allows unauthenticated remote attackers to manipulate the computeDisallowedHosts function in WebClientUtils.java, enabling unauthorized server-side requests. Affecting all versions through 1.97, this vulnerability carries moderate real-world risk (CVSS 6.9, EPSS P) with publicly available exploit code. …

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Vulnerability AssessmentAI

Risk Assessment CVSS 6.9 with vector AV:N/AC:L/PR:N indicates remote, unauthenticated attack with low complexity and moderate impact (confidentiality, integrity, and availability all rated low). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker discovers a publicly exposed Appsmith Dashboard instance and crafts a malicious request targeting the computeDisallowedHosts function with a specially formatted URL parameter designed to bypass host validation. The attack exploits insufficient filtering to redirect the server's outbound connection to an internal service such as a cloud metadata endpoint (AWS IMDSv1), internal API, or database server. …
Remediation Vendor-released patch: upgrade Appsmith to version 1.99 or later. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-18518 vulnerability details – vuln.today

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