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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| grafana | grafana | >= 8.3.0-beta1, < 9.2.10 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | grafana | No fix yet | — |
Advisories 2
- VDE-2026-049 Balluff GmbH: Multiple Vulnerabilities Affecting BNI EGW-720-007-K095 and BAV MA-NC-00025-01 CERT@VDE · Jun 30, 2026
- WID-SEC-2023-0263 Grafana: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Feb 8, 2024