CVE-2026-8609

HighCVSS 7.5/10Last modified Oct 25, 2026

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).

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
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

References

https://grafana.com/security/security-advisories/cve-2026-8609Vendor Advisory

Timeline

Published: Jul 10, 2026
Last modified: Oct 25, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-860907.1ntopng before 6.7.260717 fails to perform authorization checks in the delete endpoints and recipients REST v2 handlers. Authenticated non-ad CVE-2026-860917.1ntopng before 6.7.260717 fails to check user privileges in the pools bulk-delete endpoint, allowing authenticated non-administrators to dele CVE-2026-860937.5IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or impersonate a DRDA server en CVE-2026-860957.8Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names int CVE-2026-860965.9PX4 Autopilot through 1.17.0 contains a use-after-free vulnerability in TemperatureCalibration::start() due to a race condition between task CVE-2026-860976.5PX4 Autopilot through 1.17.0 contains a null pointer dereference vulnerability in param_set_default_file() and param_set_backup_file() funct CVE-2026-860987.4ntop nDPI versions before 6.0 contain a heap buffer overflow vulnerability in the ndpi_json_string_escape function that writes beyond caller CVE-2026-860998.2Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse CVE-2026-86104.3The TypeSquare Webfonts for ConoHa plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.0.4. T CVE-2026-861006.4Camaleon CMS versions 2.7.5 through 2.9.1 fail to validate redirect targets when fetching remote files in the Upload from URL media feature.CVE-2026-861016.5An improper authorization vulnerability in WatchGuard Fireware OS's SAML login process allows a remote, authenticated SAML user with access CVE-2026-861029.3An OS command injection vulnerability in the WatchGuard AP internal API service allows an attacker with network access to the AP to execute