CVE-2026-8609

grafana: An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded mem...

CVE-2026-8609 is fixed in 3 products on 1 platform, first by RHSA-2026:67517, released July 6, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.4
moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0040
34th percentile

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).

Where it's fixed

ProductFixed inFixReleased
Linux
grafana · RHEL 10 10.2.6-26.el10_0 RHSA-2026:67517 Jul 6, 2026
grafana · RHEL 9 0:10.2.6-23.el9_8.4 RHSA-2026:90811 Oct 30, 2026
grafana · almalinux 10 10.2.6-28.el10_2.4 ALSA-2026:54178 Aug 12, 2026
grafana · ol 10 0:10.2.6-28.el10_2.4 ELSA-2026-54178 Aug 12, 2026
grafana · ol 9 0:10.2.6-23.el9_8.7 ELSA-2026-90811 Nov 7, 2026
grafana · opensuse-leap 16.0 12.4.10-bp160.1.1 OPENSUSE-SU-2026:22125-1 Nov 7, 2026
grafana · rocky 10 0:10.2.6-28.el10_2.4 RLSA-2026:54178 Aug 13, 2026
grafana · sles 15.7 12.4.10-150200.3.94.3 SUSE-SU-2026:4600-1 Nov 7, 2026
grafana-selinux · RHEL 9 0:10.2.6-23.el9_8.4 RHSA-2026:90811 Oct 30, 2026
grafana-selinux · almalinux 10 10.2.6-28.el10_2.4 ALSA-2026:54178 Aug 12, 2026
grafana-selinux · ol 10 0:10.2.6-28.el10_2.4 ELSA-2026-54178 Aug 12, 2026
grafana-selinux · ol 9 0:10.2.6-23.el9_8.7 ELSA-2026-90811 Nov 7, 2026
system-user-grafana · sles 15.7 1.0.0-150200.5.8.1 SUSE-SU-2026:4600-1 Nov 7, 2026

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