Vulnerabilidades do Grafana Grafana

CVE-2026-14199 Alta · 8.1 CWE-290 02/09/2026

Session takeover via Auth Proxy cache key collision

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).

CVE-2026-8609 Alta · 7.5 CWE-400 10/07/2026

Pre-authentication denial of service via the OAuth login route

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).

CVE-2026-8595 Média · 5.4 CWE-79 10/07/2026

Stored XSS in the table panel (TableNG)

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).

CVE-2026-33382 Alta · 7.5 CWE-400 10/07/2026

Denial of service via unbounded request body size

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.

CVE-2026-28378 Baixa · 2.7 CWE-284 07/07/2026

Cross-Organization Public Dashboard Deletion via Missing Org Isolation

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.

CVE-2026-42127 Alta · 7.5 CWE-400 22/06/2026

Pre-authentication denial of service in the public dashboard query endpoint

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.

CVE-2026-9029 Média · 5.4 CWE-79 22/06/2026

Stored XSS in the Geomap panel tile-layer attribution

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).

CVE-2026-10601 Média · 4.3 CWE-22 22/06/2026

Path traversal in the Tempo and Loki data source plugins

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.

CVE-2026-33381 Alta · 8.1 CWE-284 13/05/2026

Users can generate Service Account tokens after permissions removal

When a user's access to mint tokens for a service account is revoked, it is sometimes still possible to do so for a few seconds after the event. The user will eventually lose access to do this.

CVE-2026-33380 Média · 6.5 CWE-552 13/05/2026

SQL Expressions Read File From Disk

A vulnerability in SQL Expressions allows an authenticated attacker to read arbitrary files from the Grafana server's filesystem. Only instances with the sqlExpressions feature toggle enabled are vulnerable.

CVE-2026-33378 Média · 6.5 CWE-400 13/05/2026

Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro

Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

CVE-2026-33377 Alta · 7.1 CWE-287 13/05/2026

Dashboard Import Overwrites ACL — Editor Privilege Escalation to Dashboard Admin

An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The user must have write access to the dashboard to escalate privilege.

CVE-2026-33376 Alta · 7.4 CWE-1188 13/05/2026

Auth Proxy IPv6 whitelist bypass

When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask (usually /128) to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here.

CVE-2026-28383 Média · 6.5 CWE-770 13/05/2026

Grafana plugin resources can lead to unbounded memory allocation

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.

CVE-2026-28380 Média · 6.5 CWE-862 13/05/2026

BAC in Snapshot API allows deletion of unauthorized dashboard snapshots

Any Editor could delete any snapshot, even if they have no access to read or write them.

CVE-2026-28379 Média · 6.5 CWE-362 13/05/2026

Viewer-triggered race condition in Grafana Live leads to complete server crash

A race condition in Grafana Live allows authenticated users with Viewer role to trigger a server crash by sending concurrent requests that cause a fatal map access error. This results in complete service unavailability requiring restart of the Grafana server.

CVE-2026-28376 Média · 6.5 CWE-770 13/05/2026

Grafana Live push endpoint allows unbounded memory allocation leading to OOM

The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue.

CVE-2026-28374 Média · 4.3 CWE-284 13/05/2026

IDOR in Annotations API allows unprivileged users to DELETE annotation

Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.

CVE-2026-21727 Baixa · 3.3 CWE-732 15/04/2026

Grafana Correlations: Cross-Tenant Data Disclosure and Permanent Deletion via Legacy org_id=0 Record

A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4. Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.

CVE-2025-12141 Média · 6.5 CWE-200 15/04/2026

Grafana Alerting Editors can edit destination of webhooks they did not create

In Grafana's alerting system, users with edit permissions for a contact point, specifically the permissions “alert.notifications:write” or “alert.notifications.receivers:test” that are granted as part of the fixed role "Contact Point Writer", which is part of the basic role Editor - can edit contact points created by other users, modify the endpoint URL to a controlled server. By invoking the test functionality, attackers can capture and extract redacted secure settings, such as authentication credentials for third-party services (e.g., Slack tokens). This leads to unauthorized access and potential compromise of external integrations.

CVE-2026-28375 Média · 6.5 CWE-400 27/03/2026

Grafana Testdata datasource can issue unbounded memory allocations

A testdata data-source can be used to trigger out-of-memory crashes in Grafana.

CVE-2026-27880 Alta · 7.5 CWE-787 27/03/2026

OpenFeature evaluation API reads input data with no bounds

The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.

CVE-2026-27879 Média · 6.5 CWE-787 27/03/2026

Query resampling can cause unbounded memory allocations

A resample query can be used to trigger out-of-memory crashes in Grafana.

CVE-2026-27877 Alta · 7.5 CWE-312 27/03/2026

Public dashboards discloses all direct mode datasources

When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.

CVE-2026-27876 Crítica · 9.1 CWE-94 27/03/2026

RCE on Grafana via sqlExpressions

A chained attack via SQL Expressions and a Grafana Enterprise plugin can lead to a remote arbitrary code execution impact (RCE). This is enabled by a feature in Grafana (OSS), so all users are always recommended to update to avoid future attack vectors going this path. Only instances with the sqlExpressions feature toggle enabled are vulnerable. Only instances in the following version ranges are affected: - 11.6.0 (inclusive) to 11.6.14 (exclusive): 11.6.14 has the fix. 11.5 and below are not affected. - 12.0.0 (inclusive) to 12.1.10 (exclusive): 12.1.10 has the fix. 12.0 did not receive an update, as it is end-of-life. - 12.2.0 (inclusive) to 12.2.8 (exclusive): 12.2.8 has the fix. - 12.3.0 (inclusive) to 12.3.6 (exclusive): 12.3.6 has the fix. - 12.4.0 (inclusive) to 12.4.2 (exclusive): 12.4.2 has the fix. 13.0.0 and above also have the fix: no v13 release is affected.