4.3

CVE-2026-28374: IDOR in Annotations API allows unprivileged users to DELETE annotation

Analyzed
AliasesUBUNTU-CVE-2026-28374CGA-44qx-wmcg-rrh2CGA-5jph-qg5g-789f
Published 13-05-2026Last modified 27-08-2026

Vulnerability summary

CVE-2026-28374 is a medium (CVSS 4.3) Improper Access Control vulnerability in grafana. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.20%
0%100%
Low · -0.06 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 6
OPENSUSE-SU-2026:10932-1OPENSUSE-SU-2026:20940-1RHSA-2026:68767RHSA-2026:68778RHSA-2026:68821SUSE-SU-2026:2768-1

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.

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

Decrease -0.06 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard6 products
  • grafana-12.0All versions (No fix recorded)
  • grafana-12.1All versions (No fix recorded)
  • grafana-12.4< 12.4.3.02-r0
  • grafana-fips-12.0All versions (No fix recorded)
  • grafana-fips-12.1All versions (No fix recorded)
Grafana2 products
  • grafanaEOL≥ 8.5.0, < 11.6.14 | ≥ 12.2.0, < 12.2.8 | ≥ 12.3.0, < 12.3.6 | ≥ 12.4.0, < 12.4.3 | 11.6.14 | 11.6.14:security01 | 12.2.8 | 12.2.8:security01 | 12.3.6 | 12.3.6:security01 | 12.4.3 | 13.0.0 | 13.0.1
  • grafana oss≥ 8.5.0, ≤ 11.6.14 | ≥ 11.6.14, < 11.6.14+security-04 | ≥ 12.0.0, ≤ 12.2.8 | ≥ 12.2.8, < 12.2.8+security-04 | ≥ 12.3.0, ≤ 12.3.6 | ≥ 12.3.6, < 12.3.6+security-04 | ≥ 12.4.0, ≤ 12.4.3 | ≥ 12.4.3, < 12.4.3+security-02 | ≥ 13.0.0, ≤ 13.0.1 | ≥ 13.0.1, < 13.0.1+security-01
Ubuntu1 product
  • grafanaAll versions (No fix recorded)
Wolfi1 product
  • grafana-12.4< 12.4.3.02-r0

4 vendors · 10 products

References

5 links