CVE-2026-63458 Perses project query parameter authorization bypass exposes cross-project resources
Authenticated users can bypass project-level authorization to read resources from other projects by manipulating query parameters.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-63458?
CVE-2026-63458 is a high-severity missing authorization vulnerability in perses, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-63458?
3 open source packages ship an affected version, including github.com/perses/perses.
| Package | Affected | Fixed in |
|---|---|---|
github.com/perses/perses Go | All versions | 0.54.0-beta.3 |
github.com/perses/perses Go | All versions | 0.54.0-beta.3 |
github.com/perses/perses Go | All versions | 0.54.0-beta.3 |
How do I fix CVE-2026-63458?
Upgrade github.com/perses/perses to 0.54.0-beta.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-63458 being exploited?
There is no known exploitation of CVE-2026-63458 in the wild and no public exploit code.
Sources
Also known as GHSA-cjgj-2fwf-4c2w, GO-2026-6518.