Resource exhaustion in Grafana - CVE-2026-8609
Published: July 13, 2026
Vulnerability identifier: #VU137392
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-8609
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the OAuth login route. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Grafana
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
grafana (Red Hat package)
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
grafana (Red Hat package)
How to mitigate CVE-2026-8609
Install updates from vendor's website.
Grafana - addressed in versions 11.6.15, 12.2.9, 12.3.7, 12.4.4, 13.0.2
grafana (Red Hat package) - update to 10.2.6-28.el10_2.4
grafana (Red Hat package) - update to 10.2.6-28.el10_2.4