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Fencer Intel
medium 5.0

CVE-2025-3454 json

Grafana's datasource proxy API allows authorization checks to be bypassed

published last yr. modified last mo. also BIT-grafana-2025-3454 , EUVD-2025-16644 , GHSA-9j65-rv5x-4vrf , GO-2025-3742

cvss
5.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path.

Users with minimal permissions could gain unauthorized read access to GET endpoints in Alertmanager and Prometheus datasources.

The issue primarily affects datasources that implement route-specific permissions, including Alertmanager and certain Prometheus-based datasources.

Patch / fix

  • go github.com/grafana/grafana 0.0.0-20250424191517-1f707d16ed5d
  • bitnami grafana 10.4.17, 11.5.3, 11.6.0
  • Grafana Grafana 10.4.17+security-01, 11.2.8+security-01, 11.3.5+security-01, 11.4.3+security-01, 11.5.3+security-01, 11.6.0+security-01
  • Grafana Grafana Enterprise 10.4.17+security-01, 11.2.8+security-01, 11.3.5+security-01, 11.4.3+security-01, 11.5.3+security-01, 11.6.0+security-01
  • grafana SLE Module for Package Hub 15 SP7, SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 11.5.5-150200.3.72.2
  • grafana Manager Client Tools 15 11.5.5-150000.1.79.1
  • prometheus-blackbox_exporter openSUSE Leap 15.6, Manager Proxy Module 4.3, Manager Client Tools for SLE Micro 5 +1 more 0.26.0-150000.1.27.1
  • golang-github-prometheus-prometheus Manager Client Tools 15 2.53.4-150000.3.62.2
  • grafana Manager Client Tools 12 11.5.5-1.79.2
  • prometheus-blackbox_exporter Manager Client Tools 12 0.26.0-1.27.1
  • golang-github-prometheus-prometheus Manager Client Tools 12 2.53.4-1.60.2
  • golang-github-prometheus-alertmanager Manager Client Tools 12 0.26.0-1.31.2

suse advisories SUSE-SU-2025:01991-1SUSE-SU-2025:01989-1SUSE-SU-2025:01987-1SUSE-SU-2025:01985-1

  • govulncheck-vulndb openSUSE Tumbleweed 0.0.20250612T141001-1.1
  • grafana openSUSE Tumbleweed 11.5.4-1.1

opensuse advisories openSUSE-SU-2025:15225-1openSUSE-SU-2025:15052-1

  • grafana Alpine 3.24, Alpine 3.23, Alpine 3.22 11.6.1-r0

alpine advisories ALPINE-CVE-2025-3454

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2025-3454 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-3454 updated cvss 4.3

grafana: Unauthorized Data Source Access in Grafana via URL Path Manipulation

  • Red Hat Enterprise Linux 8 grafana, grafana-loki, grafana-mssql, grafana-mysql, grafana-selinux, grafana-graphite, +8 more Red Hat Enterprise Linux 9 grafana, grafana-selinux Red Hat Enterprise Linux 10 grafana
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
GitHub 3.1 5.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
OSV 3.1 5.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/grafana/grafana
>=0.0.0-20210414170620-dadccdda06e6, <0.0.0-20250424191517-1f707d16ed5d
>=0.0.0-20210414170620-dadccdda06e6
0.0.0-20250424191517-1f707d16ed5d
bitnami grafana
>=10.4.0, <10.4.17
>=11.2.0, <11.5.3
>=11.6.0, <11.6.0
10.4.17
11.5.3
11.6.0

Affected products

  • Grafana Grafana
  • Grafana Grafana Enterprise

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.