CVE-2026-28379

🔶 medium

Summary

A race condition in Grafana Live allows authenticated users with Viewer role to trigger a server crash by sending concurrent requests that cause a fatal map access error. This results in complete service unavailability requiring restart of the Grafana server.

CVSS Score

6.5

Medium

EPSS Score

0.0

Exploit Probability

Published Date

2026-05-13

First Seen: 2026-05-17

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.8% of all 327,350 vulnerabilities in our database.

#170,806

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: May 14, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-06-02

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE IDs (Weakness Types)

CWE-362

📦 Affected Products 10

Vendor	Product	Status	Affected Versions
grafana	grafana	Affected	> 8.5.0 < 11.6.14
grafana	grafana	Affected	> 12.2.0 < 12.2.8
grafana	grafana	Affected	> 12.3.0 < 12.3.6
grafana	grafana	Affected	> 12.4.0 < 12.4.3
grafana	grafana	Affected	v11.6.14
grafana	grafana	Affected	v12.2.8
grafana	grafana	Affected	v12.3.6
grafana	grafana	Affected	v12.4.3
grafana	grafana	Affected	v13.0.0
grafana	grafana	Affected	v13.0.1

🔗 References 1

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

Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	Summary	Published
CVE-2026-28374	🔶 medium	4.3	Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read t...	2026-05-13
CVE-2026-28376	🔶 medium	6.5	The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming req...	2026-05-13
CVE-2026-28380	🔶 medium	6.5	Any Editor could delete any snapshot, even if they have no access to read or write them.	2026-05-13
CVE-2026-28383	🔶 medium	6.5	A request to the Grafana plugin resources endpoint can cause unbounded memory allocation by reading the entire request b...	2026-05-13
CVE-2026-33376	⚠️ high	7.4	When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask expl...	2026-05-13
CVE-2026-33377	⚠️ high	7.1	An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The user must have wr...	2026-05-13

These CVEs affect the same products