9.8

CVE-2023-3128: grafana Authentication Bypass by Spoofing

Modified
AliasesRHSA-2023:4030UBUNTU-CVE-2023-3128GHSA-mpv3-g8m3-3fjc
Published 22-06-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-3128 is a critical (CVSS 9.8) Authentication Bypass by Spoofing vulnerability in grafana. EPSS estimates a 4.00% chance of exploitation in the next 30 days, higher than 90.5% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.4 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
4.00%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
RHSA-2023:6420RHSA-2023:6972RHSA-2024:3925SUSE-SU-2023:2915-1SUSE-SU-2023:2916-1SUSE-SU-2023:2917-1

Timeline

  1. 22-06-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

4.00%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

No change 0.00 pp

From 4.00% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat3 products
  • grafana< 0:9.0.9-3.el9_2
  • grafana-debuginfo< 0:9.0.9-3.el9_2
  • grafana-debugsource< 0:9.0.9-3.el9_2
Grafana2 products
  • grafana≥ 6.7.0, < 8.5.27 | ≥ 9.2.0, < 9.2.20 | ≥ 9.3.0, < 9.3.16 | ≥ 9.4.0, < 9.4.13 | ≥ 9.5.0, < 9.5.4
  • grafana enterprise≥ 9.5.0, < 9.5.4 | ≥ 9.4.0, < 9.4.13 | ≥ 9.3.0, < 9.3.16 | ≥ 9.2.0, < 9.2.20 | ≥ 6.7.0, < 8.5.27
Github.com/grafana1 product
  • grafana≥ 9.4.0, < 9.4.13 | ≥ 9.3.0, < 9.3.16 | ≥ 9.0.0, < 9.2.20 | < 8.5.27
Opensuse1 product
  • grafana&distro=openSUSE Tumbleweed< 10.0.1-1.1
Ubuntu1 product
  • grafanaAll versions (No fix recorded)

5 vendors · 8 products

References

17 links
Show all 17 references