Grafana: >> Grafana Security Vulnerabilities
Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
CVSS Score
7.1
EPSS Score
0.003
Published
2026-09-02
A user with Editor permissions can craft a dashboard whose table (TableNG) panel contains a malicious field name that executes as a script in the browser of any user who views the dashboard (stored cross-site scripting).
CVSS Score
6.8
EPSS Score
0.002
Published
2026-07-10
An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service).
CVSS Score
5.3
EPSS Score
0.004
Published
2026-07-10
Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-07-10
The public dashboard deletion endpoint does not enforce organization isolation, allowing an Org Admin in one organization to delete public dashboards belonging to a different organization by supplying the target dashboard's identifiers.
CVSS Score
3.1
EPSS Score
0.002
Published
2026-07-07
The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-06-22
A user with Editor permissions can place a malicious script in the attribution field of a Geomap panel's XYZ tile layer via a template variable. The script then executes in the browser of any user who views the affected dashboard (stored cross-site scripting).
CVSS Score
7.3
EPSS Score
0.003
Published
2026-06-22
A user with Viewer permissions can use specially crafted requests to the Tempo and Loki data source plugins to reach unintended backend endpoints. Depending on the backend configuration this can expose data source credentials, leak internal responses, or trigger administrative actions on the configured backend.
CVSS Score
5.4
EPSS Score
0.003
Published
2026-06-22
Any Editor could delete any snapshot, even if they have no access to read or write them.
CVSS Score
6.5
EPSS Score
0.002
Published
2026-05-13
A request to the Grafana plugin resources endpoint can cause unbounded memory allocation by reading the entire request body into memory. An authenticated user can exploit this to trigger an out-of-memory condition, potentially causing a denial of service.
CVSS Score
6.5
EPSS Score
0.003
Published
2026-05-13
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