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    <lastBuildDate>Mon, 05 Oct 2026 03:33:29 +0000</lastBuildDate>
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      <title>CVE-2026-63087 — Grafana OnCall 1.16.11 Unauthenticated Token Hijack via Plugin Install Endpoint</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-63087</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; grafana-cold-storage oncall&lt;/p&gt;
&lt;p&gt;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&amp;#39;s grafana_url and api_token.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; grafana-cold-storage oncall&lt;/p&gt;
&lt;p&gt;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&amp;#39;s grafana_url and api_token.&lt;/p&gt;</content:encoded>
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