CVE-2026-63458: Perses

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Perses is an open-source dashboard and visualization project for observability data. Prior to 0.54.0-beta.3, an authenticated user with viewer access to one project can supply another project through the project query parameter on project-scoped list endpoints, including /api/v1/projects/{project}/dashboards and /api/v1/datasources. The request-controlled project value is used to select dashboards, datasources, and variables without enforcing the caller's authorization for that selected project, which breaks project-level tenant isolation and exposes complete resource specifications belonging to other projects. This issue is fixed in version 0.54.0-beta.3.

Affected products

• Perses Perses: before 0.54.0-beta.3 (fixed in 0.54.0-beta.3)

Published 2026-09-18. Last modified 2026-09-23.