CVE-2026-8609
HIGHCVSS 7.5/10EPSS 0.36%
Last modified
CVE-2026-8609 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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).. EPSS estimates a 0.36% chance of exploitation in the next 30 days.
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana | >= 11.6.0, < 11.6.15 |
| Grafana | Grafana | >= 12.2.0, < 12.2.9 |
| Grafana | Grafana | >= 12.3.0, < 12.3.7 |
| Grafana | Grafana | >= 12.4.0, < 12.4.4 |
| Grafana | Grafana | >= 13.0.0, < 13.0.2 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-8609?
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).
How severe is CVE-2026-8609?
CVE-2026-8609 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.
How do I fix CVE-2026-8609?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-86082n8n is an open source workflow automation platform. Prior to…6.5
- CVE-2026-86083n8n is an open source workflow automation platform. Prior to…8.8
- CVE-2026-86084n8n is an open source workflow automation platform. Prior to…5.5
- CVE-2026-86085n8n is an open source workflow automation platform. Prior to…4.9
- CVE-2026-86087IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 cou…4.3
- CVE-2026-86089Apache NiFi 2.11.0 supports migrating the contents of a vers…7.1
- CVE-2026-86090ntopng before 6.7.260717 fails to perform authorization chec…7.1
- CVE-2026-86091ntopng before 6.7.260717 fails to check user privileges in t…7.1
- CVE-2026-86093IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 cou…7.5
- CVE-2026-86095Unidata netcdf-c through 4.10.1 contains an out-of-bounds wr…7.8
- CVE-2026-86096PX4 Autopilot through 1.17.0 contains a use-after-free vulne…5.9
- CVE-2026-86097PX4 Autopilot through 1.17.0 contains a null pointer derefer…6.5
Are you affected by CVE-2026-8609?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST