CVE-2026-84373

medium Red Hat
CVSS v3 Base Score
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: September 1, 2026 (4 days ago)
Last Modified: September 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Vitest, a testing framework. A remote attacker, able to reach an exposed development server, could exploit an issue in the mockerPlugin and interceptorPlugin exports. These plugins register a handler on Vite's unauthenticated HMR WebSocket without properly validating redirect targets. By submitting a specially crafted URL with path traversal segments, an attacker could read arbitrary local files accessible by the development server process, leading to information disclosure.

CWE

CWE-22

Affected Products

Red Hat AMQ Broker 7Red Hat Ansible Automation Platform 2Red Hat Build of KeycloakRed Hat Build of Podman DesktopRed Hat Enterprise Linux 10Red Hat Hardened ImagesRed Hat JBoss Enterprise Application Platform 8Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat Trusted Artifact Signer

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com 🔗 github.com