3.3

CVE-2026-21727: grafana

CVSS: 3.3v3.1LowModified
AliasesUBUNTU-CVE-2026-21727GHSA-p5x9-j974-rpfpBIT-grafana-2026-21727
Published 15-04-2026Last modified 27-08-2026
Open JSON

Vulnerability summary

CVE-2026-21727 is a low (CVSS 3.3) vulnerability in grafana. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.8% of scored vulnerabilities.

Overall risk
13/100
0100
Low · default modelHow is this calculated?
CVSS score
3.3/10
010
Low · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-04-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

A cross-tenant isolation vulnerability was found in Grafana’s Correlations feature affecting legacy correlation records. Due to a backward compatibility condition allowing org_id = 0 records to be returned across organizations, a user with datasource management privileges could read and permanently delete legacy correlation data belonging to another organization. This issue affects correlations created prior to Grafana 10.2 and is fixed in >=11.6.11, >=12.0.9, >=12.1.6, and >=12.2.4. Thanks to Gyu-hyeok Lee (g2h) for reporting this vulnerability.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard2 products
  • grafana-11.5All versions (No fix recorded)
  • grafana-fips-11.5All versions (No fix recorded)
Grafana2 products
  • grafana< 11.6.11 | ≥ 12.0.0, < 12.0.9 | ≥ 12.1.0, < 12.1.6 | ≥ 12.2.0, < 12.2.4 | ≥ 12.3.0, < 12.3.3
  • grafana correlations≥ 10.2.0, < 12.4.0
Github.com/grafana1 product
  • grafana< 1.9.2-0.20260127141016-e702db6096e0 | All versions (No fix recorded)
Ubuntu1 product
  • grafanaAll versions (No fix recorded)

4 vendors · 6 products

References

13 links
Show all 13 references