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CVE-2026-21721

Dashboard Permissions Scope Bypass Enables Cross‑Dashboard Privilege Escalation

CVSS score

8.1

EPSS probability

%0.7

Risk score

0.1

Published

8 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-21721 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-21721 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1grafanagrafana/grafana View
2grafanagrafana/grafana View
3grafanagrafana/grafana View
4grafanagrafana/grafana View
5grafanagrafana/grafana View
6grafanagrafana/grafana-enterprise View
7grafanagrafana/grafana-enterprise View
8grafanagrafana/grafana-enterprise View
9grafanagrafana/grafana-enterprise View
10grafanagrafana/grafana-enterprise View
11grafanagrafana View
12grafanagrafana View
13grafanagrafana View
14grafanagrafana View
15grafanagrafana View
16grafanagrafana View
17grafanagrafana View
18grafanagrafana View
19grafanagrafana View
20grafanagrafana View
Total affected vendors: 1|Products: 20

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.1CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NNVD
8.1CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCVE CNA
8.1CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NCVE ADP

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-21721 is associated with the following CWEs:

CWE-863: Common Weakness Enumeration Entry CWE-863CWE-639: Common Weakness Enumeration Entry CWE-639

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-21721 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://grafana.com/security/security-advisories/cve-2026-21721vendor-advisoryhttps://access.redhat.com/errata/RHSA-2026:2914nvdhttps://access.redhat.com/errata/RHSA-2026:2920nvdhttps://access.redhat.com/errata/RHSA-2026:3078nvdhttps://access.redhat.com/errata/RHSA-2026:3529nvdhttps://access.redhat.com/errata/RHSA-2026:41064nvdhttps://access.redhat.com/errata/RHSA-2026:5633nvdhttps://access.redhat.com/errata/RHSA-2026:8229nvdhttps://access.redhat.com/security/cve/CVE-2026-21721nvdhttps://bugzilla.redhat.com/show_bug.cgi?id=2433242nvd

CVSS Vector Radar Chart

8.1 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

G
grafana logo
grafana

Weakness Type (CWE & CAPEC)

CWE-863 CWE-639

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