Grafana: >> Grafana >> 9.5.8 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
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
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
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.
CVSS Score
7.4
EPSS Score
0.003
Published
2026-05-13
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.
CVSS Score
7.1
EPSS Score
0.002
Published
2026-05-13
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.
CVSS Score
6.5
EPSS Score
0.003
Published
2026-05-13
Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.
CVSS Score
4.3
EPSS Score
0.002
Published
2026-05-13
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.
CVSS Score
6.5
EPSS Score
0.003
Published
2026-05-13
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.
CVSS Score
6.5
EPSS Score
0.003
Published
2026-05-13
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