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CVE-2026-63087— Grafana OnCall 1.16.11 Unauthenticated Token Hijack via Plugin Install Endpoint

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-63087

Vulnerability Information
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Vulnerability Title
Grafana OnCall 1.16.11 Unauthenticated Token Hijack via Plugin Install Endpoint
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
grafana-cold-storageoncall 0 ~ 1.16.11 -

II. Public POCs for CVE-2026-63087

#POC DescriptionSource LinkShenlong Link
AI-Generated POCVerified env Premium
Qwen3.6-35B-A3B · 10042 chars
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III. Intelligence Information for CVE-2026-63087

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Vendor Advisories for CVE-2026-63087 (1)

Security Blog Posts for CVE-2026-63087 (1)

IV. Related Vulnerabilities

Same product: oncall
Same weakness: CWE-306

V. Comments for CVE-2026-63087

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