How severe is CVE-2025-3454?

CVE-2025-3454 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-3454 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-3454?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-3454 have an EU (EUVD) identifier?

Yes. CVE-2025-3454 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16644.

When was CVE-2025-3454 published?

CVE-2025-3454 was published on 2025-06-02 and last updated on 2026-06-17.

CVE-2025-3454

CVE-2025-3454 is a medium-severity vulnerability with a CVSS 3.x base score of 5.0. 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-285.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-16644
Weakness: CWE-285
Published: 2025-06-02
Last modified: 2026-06-17

Description

This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path. Users with minimal permissions could gain unauthorized read access to GET endpoints in Alertmanager and Prometheus datasources. The issue primarily affects datasources that implement route-specific permissions, including Alertmanager and certain Prometheus-based datasources.

Frequently asked questions

What is CVE-2025-3454?: This vulnerability in Grafana's datasource proxy API allows authorization checks to be bypassed by adding an extra slash character in the URL path. Users with minimal permissions could gain unauthorized read access to GET endpoints in Alertmanager and Prometheus datasources. The issue primarily affects datasources that implement route-specific permissions, including Alertmanager and certain Prometheus-based datasources.
How severe is CVE-2025-3454?: CVE-2025-3454 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-3454 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-3454?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3454 have an EU (EUVD) identifier?: Yes. CVE-2025-3454 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16644.
When was CVE-2025-3454 published?: CVE-2025-3454 was published on 2025-06-02 and last updated on 2026-06-17.

References

https://grafana.com/security/security-advisories/cve-2025-3454/

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