Description
Grafana is an open-source platform for monitoring and observability. When datasource query caching is enabled, Grafana caches all headers, including `grafana_session`. As a result, any user that queries a datasource where the caching is enabled can acquire another user’s session. To mitigate the vulnerability you can disable datasource query caching for all datasources. This issue has been patched in versions 9.2.10 and 9.3.4.
Affected products
grafana: grafana
References3
- github.com/grafana/grafana/security/advisories/GHSA-2j8f-6whh-f… ExploitMitigationThird Party Advisory
- github.com/grafana/grafana/security/advisories/GHSA-2j8f-6whh-f… ExploitMitigationThird Party Advisory
- security.netapp.com/advisory/ntap-20230309-0007/
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 67 · as of 6 November 2026
- CWE
- CWE-200
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.