Grafana oncall up to 1.16.11 Internal Plugin Install Endpoint org_id redirect

Summaryinfo

A vulnerability, which was classified as problematic, was found in Grafana oncall up to 1.16.11. Affected is an unknown function of the component Internal Plugin Install Endpoint. Such manipulation of the argument org_id leads to redirect. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2026-63087. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Grafana oncall up to 1.16.11 and classified as problematic. Affected by this issue is some unknown functionality of the component Internal Plugin Install Endpoint. The manipulation of the argument org_id with an unknown input leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is integrity. CVE summarizes:

Grafana OnCall through 1.16.11 contains an unauthenticated access vulnerability that allows remote attackers to obtain a valid PluginAuthToken by sending a POST request to the internal plugin install endpoint using hardcoded default stack_id and org_id values present in the public source tree. Attackers can leverage the acquired token to authenticate against all internal API endpoints, create arbitrary Admin users via the user-context header bootstrap path, revoke the legitimate plugin token, and redirect OnCall-to-Grafana API calls to an attacker-controlled host by overwriting the organization's grafana_url and api_token.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-63087 since 07/15/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/16/2026). This vulnerability is assigned to T1204.001 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Grafana

Name

• oncall

Version

• 1.16.0
• 1.16.1
• 1.16.2
• 1.16.3
• 1.16.4
• 1.16.5
• 1.16.6
• 1.16.7
• 1.16.8
• 1.16.9
• 1.16.10
• 1.16.11

License

• open-source

Support

• end of life

CPE 2.3info

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CPE 2.2info

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