How severe is CVE-2026-33377?

CVE-2026-33377 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2026-33377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33377?

CVE-2026-33377 primarily affects Grafana. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-33377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33377 have an EU (EUVD) identifier?

Yes. CVE-2026-33377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30143.

When was CVE-2026-33377 published?

CVE-2026-33377 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-33377

CVE-2026-33377 is a high-severity vulnerability in Grafana with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30143
Weakness: CWE-287
Affected product: Grafana
Published: 2026-05-13
Last modified: 2026-06-17

Description

An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The user must have write access to the dashboard to escalate privilege.

Frequently asked questions

What is CVE-2026-33377?: An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The user must have write access to the dashboard to escalate privilege.
How severe is CVE-2026-33377?: CVE-2026-33377 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2026-33377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33377?: CVE-2026-33377 primarily affects Grafana. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-33377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33377 have an EU (EUVD) identifier?: Yes. CVE-2026-33377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30143.
When was CVE-2026-33377 published?: CVE-2026-33377 was published on 2026-05-13 and last updated on 2026-06-17.

References

https://grafana.com/security/security-advisories/cve-2026-33377

Affected products (10)

cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:11.6.14:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:11.6.14:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.2.8:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.2.8:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.3.6:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.3.6:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.4.3:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:13.0.1:-:*:*:*:*:*:*

More vulnerabilities in Grafana

CVE-2025-41115 — Critical (CVSS 10.0): SCIM provisioning was introduced in Grafana Enterprise and Grafana Cloud in April to improve how organizations manage…
CVE-2024-9264 — Critical (CVSS 9.9): The SQL Expressions experimental feature of Grafana allows for the evaluation of `duckdb` queries containing user…
CVE-2022-39328 — Critical (CVSS 9.8): Grafana is an open-source platform for monitoring and observability. Versions starting with 9.2.0 and less than 9.2.4…
CVE-2022-28660 — Critical (CVSS 9.8): The querier component in Grafana Enterprise Logs 1.1.x through 1.3.x before 1.4.0 does not require authentication when…
CVE-2022-26148 — Critical (CVSS 9.8): An issue was discovered in Grafana through 7.3.4, when integrated with Zabbix. The Zabbix password can be found in the…
CVE-2021-39226 — Critical (CVSS 9.8): Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are…

All CVEs affecting Grafana →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-20317 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering…
CVE-2026-19977 — Critical (CVSS 10.0): A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function…
CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62825 — Critical (CVSS 10.0): Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-287 (Improper Authentication) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

167.172.93.203 (ipv4-addr)
103.199.117.203 (ipv4-addr)
46.38.146.46 (ipv4-addr)
221.224.194.3 (ipv4-addr)
139.99.217.78 (ipv4-addr)
102.182.92.126 (ipv4-addr)
202.61.238.208 (ipv4-addr)
165.227.163.142 (ipv4-addr)