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OpenAdvisories
High · 7.5 CVE-2026-42127 BIT-grafana-2026-42127EUVD-2026-38309GHSA-3w66-95m3-8jxgGO-2026-6541

Pre-authentication denial of service in the public dashboard query endpoint

Published Jun 22, 2026 · Updated Aug 27, 2026 · Assigned by GRAFANA

Description

The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.

Affected products

VendorProductAffectedFixed
Grafana Grafana Enterprise 11.6.0 – ≤ 11.6.14, 12.2.0 – ≤ 12.2.8, 12.3.0 – ≤ 12.3.6, 12.4.0 – ≤ 12.4.3, 13.0.0 – ≤ 13.0.1 —
Grafana Grafana OSS 11.6.0 – ≤ 11.6.14, 12.2.0 – ≤ 12.2.8, 12.3.0 – ≤ 12.3.6, 12.4.0 – ≤ 12.4.3, 13.0.0 – ≤ 13.0.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS grafana No fix yet —
ReleasePackageFixed inAdvisory
RHEL 10 grafana +1 10.2.6-28.el10_2.4 RHSA-2026:54178
RHEL 9 grafana +1 10.2.6-23.el9_8.1 RHSA-2026:54184
RHEL 8 grafana +1 9.2.10-32.el8_10.1 RHSA-2026:54243
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS grafana +1 10.2.6-26.el10_0 RHSA-2026:67517
RHEL 9.6 EUS grafana +1 10.2.6-23.el9_6 RHSA-2026:67518
RHEL 9.4 E4S grafana +1 9.2.10-28.el9_4 RHSA-2026:76795
Red Hat Hardened Images 1 grafana12.4 12.4.6-0.2.hum1 RHSA-2026:47619
Red Hat Hardened Images 1 grafana13.1 13.1.1-0.2.hum1 RHSA-2026:47618
Red Hat Hardened Images 1 grafana13.2 13.2.1-0.5.hum1 RHSA-2026:68778

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 grafana +1 10.2.6-28.el10_2.4 ALSA-2026:54178
AlmaLinux 9 grafana +1 10.2.6-23.el9_8.1 ALSA-2026:54184
AlmaLinux 8 grafana +1 9.2.10-32.el8_10.1 ALSA-2026:54243

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 9 grafana 10.2.6-23.el9_8.1 RLSA-2026:54184
Rocky Linux 8 grafana 9.2.10-32.el8_10.1 RLSA-2026:54243
ReleasePackageFixed inAdvisory
SLES 15 SP7 grafana 12.4.10-150200.3.94.3 SUSE-SU-2026:4600-1
SLES 15 SP7 system-user-grafana 1.0.0-150200.5.8.1 SUSE-SU-2026:4600-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SUSE Multi Linux Manager Tools SLE-Micro-5 uyuni-tools 5.2.17-150002.3.20.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-Micro-5 venv-salt-minion 3006.0-150002.5.22.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 golang-github-prometheus-prometheus 3.13.2-150002.3.19.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 grafana 12.4.10-150002.4.27.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 mgr-push 5.2.5-150002.3.12.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 spacecmd 5.2.10-150002.3.15.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 spacewalk-client-tools 5.2.7-150002.3.12.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 uyuni-tools 5.2.17-150002.3.20.1 SUSE-SU-2026:4585-1
SUSE Multi Linux Manager Tools SLE-15 venv-salt-minion 3006.0-150002.5.22.1 SUSE-SU-2026:4585-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed grafana 12.4.5-3.1 openSUSE-SU-2026:11332-1
openSUSE Leap 16.0 grafana 12.4.10-bp160.1.1 openSUSE-SU-2026:22125-1
ReleasePackageFixed inAdvisory
Alpine v3.24 grafana 12.4.4-r0 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 grafana +1 10.2.6-23.el9_8.1 ELSA-2026-54184
Oracle Linux 8 grafana +1 9.2.10-32.0.1.el8_10.1 ELSA-2026-54243

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling grafana-12.3 12.3.7-r0 —
Wolfi rolling grafana-12.4 12.4.4-r0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/grafana/grafana >= 2.0.0-beta1 — GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana >= 12.0.0 — GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana >= 12.3.0 — GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana >= 12.4.0 — GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana >= 13.0.0 — GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana < 1.9.2-0.20260616075434-82ef13993059 1.9.2-0.20260616075434-82ef13993059 GHSA-3w66-95m3-8jxg
Go github.com/grafana/grafana all versions — GO-2026-6541
Go github.com/grafana/grafana >= 2.0.0-beta1+incompatible — GO-2026-6541

Advisories 20

References