Bug 2433242 (CVE-2026-21721)

Summary:	CVE-2026-21721 grafana/grafana/pkg/services/dashboards: Grafana Dashboard Permissions Scope Bypass Enables Cross‑Dashboard Privilege Escalation
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	alcohan, amctagga, aoconnor, bniver, flucifre, gmeno, gparvin, groman, jbalunas, lchilton, mbenjamin, mhackett, pahickey, rhaigner, sfeifer, sostapov, vereddy
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	An authorization error has been discovered in Grafana dashboards. 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.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2433945, 2433935, 2433936, 2433937, 2433938, 2433939, 2433940, 2433941, 2433942, 2433943, 2433944
Bug Blocks:

Description OSIDB Bzimport 2026-01-27 10:02:59 UTC

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.

Comment 2 errata-xmlrpc 2026-02-18 11:26:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:2914 https://access.redhat.com/errata/RHSA-2026:2914

Comment 3 errata-xmlrpc 2026-02-18 12:49:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:2920 https://access.redhat.com/errata/RHSA-2026:2920

Comment 4 errata-xmlrpc 2026-02-23 11:38:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:3078 https://access.redhat.com/errata/RHSA-2026:3078

Comment 5 errata-xmlrpc 2026-03-02 11:44:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:3529 https://access.redhat.com/errata/RHSA-2026:3529