CVE-2026-28379Network attack vector

Authenticated server crash via concurrent Live requests

Published May 13, 2026 · Updated May 13, 2026

Race condition in Grafana Live in Grafana Labs Grafana OSS 8.2.0 through 13.0.1 allows remote authenticated users to crash the server. Grafana Labs has not disclosed the affected function or map; it states that concurrent Grafana Live requests cause a fatal map access error. Viewer-level access is sufficient, and a successful request sequence terminates the server and leaves the service unavailable until restart.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Grafana Live in Grafana Labs Grafana OSS 8.2.0 through 13.0.1 allows remote authenticated users to crash the server. Grafana Labs has not disclosed the affected function or map; it states that concurrent Grafana Live requests cause a fatal map access error. Viewer-level access is sufficient, and a successful request sequence terminates the server and leaves the service unavailable until restart.

The record

CVE
CVE-2026-28379
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Grafana Labs
Product
Grafana OSS
Classifications
CWE-362, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.6.14 <11.6.14+security-04
  2. Affected versionversion=12.0.0 <=12.2.8
  3. Affected versionversion=12.2.8 <12.2.8+security-04
  4. Affected versionversion=12.3.0 <=12.3.6
  5. Affected versionversion=12.3.6 <12.3.6+security-04
  6. Affected versionversion=12.4.0 <=12.4.3
  7. Affected versionversion=12.4.3 <12.4.3+security-02
  8. Affected versionversion=13.0.0 <=13.0.1
  9. Affected versionversion=13.0.1 <13.0.1+security-01
  10. Affected versionversion=8.2.0 <=11.6.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grafana Labs · Grafana OSSversion=11.6.14 <11.6.14+security-04; version=12.0.0 <=12.2.8; version=12.2.8 <12.2.8+security-04; version=12.3.0 <=12.3.6; version=12.3.6 <12.3.6+security-04; version=12.4.0 <=12.4.3; version=12.4.3 <12.4.3+security-02; version=13.0.0 <=13.0.1; version=13.0.1 <13.0.1+security-01; version=8.2.0 <=11.6.14

Published CVSS scores

6.5Grafana LabsCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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