Auth bypass in Grafana Grafana-Image-Renderer
CVE-2022-31176
Grafana Image Renderer is a Grafana backend plugin that handles rendering of panels & dashboards to PNGs using a headless browser (Chromium/Chrome). An internal security review identified an unauthorized file disclosure vulnerability. It is possible for a malicious user to retrieve unauthorized files under some network conditions or via a fake datasource (if user has admin permissions in Grafana). All Grafana installations should be upgraded to version 3.6.1 as soon as possible. As a workaround it is possible to [disable HTTP remote rendering](https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/#plugingrafana-image-renderer).
Vulnerability class: Information Disclosure
EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H.
Affected products
- Grafana Grafana-image-renderer — versions < 3.6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Third Party Advisory, Mitigation)
- security-advisories@github.com (Patch, Third Party Advisory, Issue Tracking)
- security-advisories@github.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31176?
- CVE-2022-31176 is a high-severity vulnerability in Grafana Grafana-Image-Renderer, classified under Information Disclosure. CVSS score: 8.3/10. Published 2022-09-02.
- How severe is CVE-2022-31176?
- High severity. CVSS v3 base score is 8.3 out of 10.
- Is CVE-2022-31176 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.