CVE-2026-123307
Received
Received - Intake
Unauthenticated Host Connection in JetBrains IntelliJ IDEA
Vulnerability report for CVE-2026-123307, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-06
Last updated on: 2026-11-06
Assigner: JetBrains s.r.o.
Description
Description
In JetBrains IntelliJ IDEA before 2026.3,
2026.2.4 unauthenticated connection to an arbitrary host via run configurations was possible
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| JetBrains | IntelliJ IDEA | 0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-918 | The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. |