CVE-2026-21720

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-15.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-01-27 09:07Z7 MO AGO

Last updated

2026-08-27 17:22Z8 DAYS AGO

Reserved

2026-01-05

Assigning CNA

GRAFANA

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass
• CWE-703Improper Check or Handling of Exceptional ConditionsPillar

Data version

5.2

Document digest

9814b6b24c121ff81398fb59b6fb03147f2d9a41c2dccb849f12d3537d499772

• grafana.comhttps://grafana.com/security/security-advisories/cve-2026-21720vendor-advisory
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-21720vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2433226https://bugzilla.redhat.com/show_bug.cgi?id=2433226issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21720.jsonx_sadp-csaf-vex