GHSA-mpv3-g8m3-3fjc — grafana
CRITICALGHSA-mpv3-g8m3-3fjc is a critical-severity (CVSS 9.4) CWE-290 vulnerability in github.com/grafana/grafana. A fix is available for github.com/grafana/grafana — see the affected versions and patch details below.
Grafana vulnerable to Authentication Bypass by Spoofing
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for GHSA-mpv3-g8m3-3fjc.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-mpv3-g8m3-3fjc plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 377,636 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
github.com/grafana/grafana🐹github.com/grafana/grafana🐹github.com/grafana/grafana🐹github.com/grafana/grafanaReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Grafana is validating Azure AD accounts based on the email claim.
On Azure AD, the profile email field is not unique and can be easily modified.
This leads to account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/grafana/grafana | ≥ 9.4.0&&< 9.4.13 | 9.4.13go get github.com/grafana/grafana@v9.4.13 |
| 🐹Go | github.com/grafana/grafana | ≥ 9.3.0&&< 9.3.16 | 9.3.16go get github.com/grafana/grafana@v9.3.16 |
| 🐹Go | github.com/grafana/grafana | ≥ 9.0.0&&< 9.2.20 | 9.2.20go get github.com/grafana/grafana@v9.2.20 |
| 🐹Go | github.com/grafana/grafana | all versions | 8.5.27go get github.com/grafana/grafana@v8.5.27 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/grafana/grafana, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/grafana/grafana to 9.4.13 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mpv3-g8m3-3fjc is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-mpv3-g8m3-3fjc can be triaged on real exposure rather than presence alone.
Tailored to GHSA-mpv3-g8m3-3fjc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
The vulnerability affecting Red Hat Enterprise Linux 8 and 9 has been categorized as moderate, primarily because Azure Active Directory access is not supported by default in Grafana configurations. Specifically, it remains disabled in the Grafana configuration file located at /etc/grafana/grafana.ini within the Azure…
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Ceph Storage 7.1 | ceph-2:18.2.1-194.el8cp | RHSA-2024:3925 |
| Red Hat Enterprise Linux 8 | grafana-0:9.2.10-7.el8_9 | RHSA-2023:6972 |
| Red Hat Enterprise Linux 9 | grafana-0:9.0.9-3.el9_2 | RHSA-2023:4030 |
Frequently Asked Questions
Is GHSA-mpv3-g8m3-3fjc in your dependencies?
O3 Security finds GHSA-mpv3-g8m3-3fjc across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.