What is the CVSS score of CVE-2026-21727?

CVE-2026-21727 has a CVSS 3.1 base score of 3.3 (Low). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2026-21727?

Yes, a patch is available for CVE-2026-21727. Update the affected software to the latest version immediately.

Grafana CVE-2026-21727

EUVD-2026-23011 LOW

Incorrect Permission Assignment for Critical Resource (CWE-732)

2026-04-15 GRAFANA

GHSA-p5x9-j974-rpfp

Information Disclosure Grafana Grafana Correlations

3.3

CVSS 3.1 · Vendor: GRAFANA

View

Vulnerability Assessment

Weakness

CWE

CWE-732

OWASP Top 10:2025

A01:2025 - Broken Access Control

ASVS 5.0

V13 - Configuration Permission assignment review

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 26, 2026

Cross-tenant information disclosure and deletion in Grafana allows a high-privilege authenticated user to read and permanently delete legacy correlation records belonging to

Affected VersionsENISA

Grafana Correlations 10.2.0 <12.4.0

Affected Packages

go github.com/grafana/grafana fix: 1.9.2-0.20260127141016-e702db6096e0

euvd grafana_correlations fix: 12.4.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in go, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GRAFANA) PRIMARY 3.3 LOW

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

Primary rating from Vendor (GRAFANA) · only source for this CVE.

CVSS VectorVendor: GRAFANA

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Apr 20, 2026 - 20:08 nvd

Patch available

Apr 16, 2026 - 05:29 EUVD

12.4.0

CVE Published

Apr 15, 2026 - 18:57 nvd

LOW 3.3

DescriptionCVE.org

--- title: Cross-Tenant Legacy Correlation Disclosure and Deletion draft: false hero: image: /static/img/heros/hero-legal2.svg content: "

Cross-Tenant Legacy Correlation Disclosure and Deletion"

date: 2026-01-29 product: Grafana severity: Low cve: CVE-2026-21727 cvss_score: "3.3" cvss_vector: "CVSS:3.3/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N" fixed_versions:

">=11.6.11 >=12.0.9 >=12.1.6 >=12.2.4"

--- A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4.

Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.

Threat Intelligence Overview

EPSS Score

0.0%

Top 99% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Low

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +16

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.