Description
An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| 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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | grafana +1 | 10.2.6-28.el10_2.4 | RHSA-2026:54178 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | grafana +1 | 10.2.6-26.el10_0 | RHSA-2026:67517 |
| Red Hat Hardened Images 1 | grafana12.4 | 12.4.10-0.1.hum1 | RHSA-2026:65157 |
| Red Hat Hardened Images 1 | grafana13.1 | 13.1.3-0.5.hum1 | RHSA-2026:63165 |
| Red Hat Hardened Images 1 | grafana13.2 | 13.2.1-0.1.hum1 | RHSA-2026:63164 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | grafana +1 | 10.2.6-28.el10_2.4 | ALSA-2026:54178 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | grafana | 10.2.6-28.el10_2.4 | RLSA-2026:98056, RLSA-2026:54178 |
| Rocky Linux 10 | grafana-selinux | 12.4.3-3.el10_3.2 | RLSA-2026:98056 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | grafana | 12.4.5-4.1 | openSUSE-SU-2026:11619-1 |
| openSUSE Leap 16.0 | grafana | 12.4.10-bp160.1.1 | openSUSE-SU-2026:22125-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | grafana | 12.4.4-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | grafana +1 | 10.2.6-28.el10_2.4 | ELSA-2026-54178 |
| Oracle Linux 9 | grafana +1 | 10.2.6-23.el9_8.7 | ELSA-2026-90811 |
Advisories 15
- RLSA-2026:98056 Important: grafana security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-2289 Grafana: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- ELSA-2026-90811 Moderate: grafana security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 2, 2026
- ALSA-2026:54178 Moderate: grafana security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- openSUSE-SU-2026:22125-1 Security update for grafana SUSE / openSUSE Security Updates · Oct 20, 2026
- RHSA-2026:65157 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:63164 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:63165 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:67517 Red Hat Security Advisory: grafana security update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:54178 Red Hat Security Advisory: grafana security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 10, 2026
- SUSE-SU-2026:4600-1 Security update for grafana, system-user-grafana SUSE / openSUSE Security Updates · Oct 9, 2026
- SUSE-SU-2026:4585-1 Security update 5.2.1 for Multi-Linux Manager Client Tools SUSE / openSUSE Security Updates · Oct 8, 2026
- openSUSE-SU-2026:11619-1 grafana-12.4.5-4.1 on GA media SUSE / openSUSE Security Updates · Aug 28, 2026
- RLSA-2026:54178 Moderate: grafana security, bug fix, and enhancement update Rocky Linux Security Advisories · Aug 13, 2026
- ELSA-2026-54178 Moderate: grafana security, bug fix, and enhancement update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Aug 12, 2026
References
- https://grafana.com/security/security-advisories/cve-2026-8609 vendor-advisory