CVE
CVE-2026-21721
RHSA-2026:2920: grafana security update (Important)
Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.
Security Fix(es):
- crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729)
- grafana/grafana/pkg/services/dashboards: Grafana Dashboard Permissions Scope Bypass Enables Cross?Dashboard Privilege Escalation (CVE-2026-21721)
- golang: archive/zip: Excessive CPU consumption when building archive index in archive/zip (CVE-2025-61728)
- golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)
- crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
C
H
U
-
C
H
U
-
Related Resources
No items found.
References
https://access.redhat.com/errata/RHSA-2026:2920, https://access.redhat.com/security/cve/CVE-2025-61726, https://access.redhat.com/security/cve/CVE-2025-61728, https://access.redhat.com/security/cve/CVE-2025-61729, https://access.redhat.com/security/cve/CVE-2025-68121, https://access.redhat.com/security/cve/CVE-2026-21721
Basic Information
Ecosystem
