How severe is CVE-2026-14199?

CVE-2026-14199 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-14199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-14199?

CVE-2026-14199 affects Grafana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-14199?

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.

When was CVE-2026-14199 published?

CVE-2026-14199 was published on 2026-09-02 and last updated on 2026-09-15.

CVE-2026-14199

CVE-2026-14199 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-290.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Grafana
Published: 2026-09-02
Last modified: 2026-09-15

Description

Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).

Frequently asked questions

What is CVE-2026-14199?: Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).
How severe is CVE-2026-14199?: CVE-2026-14199 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-14199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-14199?: CVE-2026-14199 affects Grafana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-14199?: 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.
When was CVE-2026-14199 published?: CVE-2026-14199 was published on 2026-09-02 and last updated on 2026-09-15.

References

https://grafana.com/security/security-advisories/cve-2026-14199

Affected products (1)

cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

60.188.57.248 (ipv4-addr)
77.42.69.120 (ipv4-addr)