CVE-2022-39328 | Grafana vulnerable to race condition allowing privilege escalation

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.

Published: 2022-11-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-39328 is rated High Risk (70.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.28%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-39328

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-17 3.80% 4.28% +0.48%
2 2026-03-29 4.40% 3.80% -0.59%
3 2026-03-11 — 4.40% —

Full EPSS history (44 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-39328

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]

Weakness enumeration for CVE-2022-39328

GitHub Security Advisory for CVE-2022-39328

GHSA-vqc4-mpj8-jxch · Severity: critical · Ecosystem: go — Grafana Race condition allowing privilege escalation

OS Trackers for CVE-2022-39328

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2022-39328
suse critical CVE-2022-39328 severity critical: SUSE including 1 source package names (grafana), 10 product×package rows across 10 product lines (HPE Helion OpenStack 8, SUSE Enterprise Storage 6, … (10 product lines)): Known Not Affected 10. https://www.suse.com/security/cve/CVE-2022-39328/
ubuntu medium CVE-2022-39328 medium priority: Ubuntu including 1 source packages (grafana), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): DNE 4, ignored 1, needed 1, needs-triage 1. https://ubuntu.com/security/CVE-2022-39328

Affected software / configurations for CVE-2022-39328

Vendor Product Version Raw CPE
grafana grafana >= 9.2.0, < 9.2.4 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*

References for CVE-2022-39328

cvelogic Threat Intelligence