Security Digest · Vulnerability record
CVE-2022-39328: Grafana Race condition allowing privilege escalation
Grafana is an open-source platform for monitoring and observability.
CVSS 9.3 Critical EPSS 1.1% · p65
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 1.1%, percentile 65: FIRST’s model estimates a 1.1% chance of exploitation activity in the next 30 days, higher than 65% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
github.com/grafana/grafana(Go) >= 9.2.0, < 9.2.4, fixed in 9.2.4. Check your lockfile, including transitive dependencies.
What it is
Grafana is an open-source platform for monitoring and observability. Versions starting with 9.2.0 and less than 9.2.4 contain a race condition in the authentication middlewares logic which may allow an unauthenticated user to query an administration endpoint under heavy load. This issue is patched in 9.2.4. There are no known workarounds.
From the GitHub advisory
Today we are releasing Grafana 9.2.4. Alongside other bug fixes, this patch release includes critical security fixes for CVE-2022-39328.
Release 9.2.4, latest patch, also containing security fix:
- Download Grafana 9.2.4
Appropriate patches have been applied to Grafana Cloud and as always, we closely coordinated with all cloud providers licensed to offer Grafana Pro. They have received early notification under embargo and confirmed that their offerings are secure at the time of this announcement. This is applicable to Amazon Managed Grafana and Azure Managed Grafana as a service offering.
Privilege escalation
Weakness type: CWE-362.
Product: github.com/grafana/grafana (Go) · Assigned by: GitHub_M · Published: 2022-11-08
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Go | github.com/grafana/grafana | >= 9.2.0, < 9.2.4 | 9.2.4 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| grafana | grafana | >= 9.2.0, < 9.2.4 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 1.08% probability of exploitation activity in the next 30 days; percentile 65.
Timeline
- — CVE record published by GitHub_M
- — GitHub-reviewed advisory GHSA-vqc4-mpj8-jxch published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-vqc4-mpj8-jxch github.com
- CVE.org record CVE-2022-39328 cve.org
- NVD entry CVE-2022-39328 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- security.netapp.com security.netapp.com