CVE-2023-3128

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.

Published: 2023-06-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-3128 is rated High Risk (69.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.09%). 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-2023-3128

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 2026-06-23 3.40% 4.09% +0.70%
2 2026-06-15 1.88% 3.40% +1.52%
3 2026-03-04 — 1.88% —

Full EPSS history (42 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-3128

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.4 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L 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:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 5.5 [email protected]
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]

Weakness enumeration for CVE-2023-3128

GitHub Security Advisory for CVE-2023-3128

GHSA-mpv3-g8m3-3fjc · Severity: critical · Ecosystem: go — Grafana vulnerable to Authentication Bypass by Spoofing

OS Trackers for CVE-2023-3128

vendor priority summary link
alpine — CVE-2023-3128: 1 source package rows (grafana); 17 state rows across 3 repos (3.18-community, 3.22-community, edge-community); fixed 0, open 17. https://security.alpinelinux.org/vuln/CVE-2023-3128
redhat medium — https://access.redhat.com/security/cve/CVE-2023-3128
suse critical CVE-2023-3128 severity critical: SUSE including 243 source package names (9.5.5.3.4.156:grafana-9.5.5-150200.3.44.1, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 254 product×package rows across 23 product lines (Container ses/7.1/ceph/grafana, HPE Helion OpenStack 8, … (23 product lines)): Known Affected 231, Fixed 18, Known Not Affected 5. https://www.suse.com/security/cve/CVE-2023-3128/
ubuntu medium CVE-2023-3128 medium priority: Ubuntu including 1 source packages (grafana), 8 status rows across 8 suites (focal, jammy, noble, oracular, plucky, questing, upstream, xenial): DNE 6, needs-triage 2. https://ubuntu.com/security/CVE-2023-3128

Affected software / configurations for CVE-2023-3128

Vendor Product Version Raw CPE
grafana grafana >= 6.7.0, < 8.5.27 cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*
grafana grafana >= 6.7.0, < 8.5.27 cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
grafana grafana >= 9.2.0, < 9.2.20 cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*
grafana grafana >= 9.2.0, < 9.2.20 cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
grafana grafana >= 9.3.0, < 9.3.16 cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*
grafana grafana >= 9.3.0, < 9.3.16 cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
grafana grafana >= 9.4.0, < 9.4.13 cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*
grafana grafana >= 9.4.0, < 9.4.13 cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*
grafana grafana >= 9.5.0, < 9.5.4 cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*
grafana grafana >= 9.5.0, < 9.5.4 cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*

References for CVE-2023-3128

cvelogic Threat Intelligence