Quick answers
- Is CVE-2026-102589 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-102589 being exploited in the wild.
- How severe is CVE-2026-102589?
- High severity, with a CVSS score of 7.1, published 11 November 2026.
- Which products and versions are affected?
- Grafana Labs Grafana 13.0.0 and later.
- Is there a fix for CVE-2026-102589?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-102589 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-102589?
- Check whether you run Grafana Labs Grafana at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An origin validation error in the renderAuthJWT feature allows renderer tokens issued by one Grafana instance to be accepted by others when they share the same renderer_token configuration. An attacker with access to one instance can craft a JWT that authenticates as another user on a different instance. This affects Grafana 13.0.0 and later where renderAuthJWT is enabled by default.
Affected products
- Grafana Labs Grafana 13.0.0 and later
Timeline
- 2026-11-11: disclosed