synced JUST NOW
01 Record

CVE-2026-21720

Unauthenticated DoS: avatar cache leaks goroutines when /avatar/:hash requests time out

HighPUBLISHEDCNA: GRAFANA
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
View raw JSON

02 Description

Unauthenticated DoS: avatar cache leaks goroutines when /avatar/:hash requests time out

03 Exploitation and scoring

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
0.69% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 52.2% 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.

04 Metadata

Published
2026-01-27 09:07Z9 MO AGO
Last updated
2026-08-27 17:22Z2 MO 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

05 Affected products

VendorProductVersionsPlatforms
Grafanagrafana/grafana-enterprise3.0.0 to < 11.6.9, 3.0.0 to < 12.0.8, 3.0.0 to < 12.1.5, 3.0.0 to < 12.2.3, 3.0.0 to < 12.3.1—
Grafanagrafana/grafana3.0.0 to < 11.6.9, 3.0.0 to < 12.0.8, 3.0.0 to < 12.1.5, 3.0.0 to < 12.2.3, 3.0.0 to < 12.3.1—

06 References

07 Fixed in

Ubuntu 16.04 LTS

  • grafana
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.