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CVE-2026-8609

CVE-2026-8609 · Pre-authentication denial of service via the OAuth login route

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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).

CVSS 5.3 · Medium · EPSS 0.4%

Published
Updated

Stack: applications

Affected products and versions

  • grafana

    Versions
    • ≥ 11.6.0, ≤ 11.6.14: Affected (semver)
    • ≥ 12.2.0, ≤ 12.2.8: Affected (semver)
    • ≥ 12.3.0, ≤ 12.3.6: Affected (semver)
    • ≥ 12.4.0, ≤ 12.4.3: Affected (semver)
    • ≥ 13.0.0, ≤ 13.0.1: Affected (semver)

    No fix published

Original sources

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