CVE-2026-28374— IDOR in Annotations API allows unprivileged users to DELETE annotation
Quick assessment
Affected
Grafana Grafana OSS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Grafana OSS是Grafana开源的一个可视化仪表盘。 Grafana OSS存在安全漏洞，该漏洞源于编辑器可删除任何注释，即使没有读取权限。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Grafana | Grafana OSS | 8.5.0≤ 11.6.14 |
affected |
11.6.14< 11.6.14+security-04 |
affected | ||
12.0.0≤ 12.2.8 |
affected | ||
12.2.8< 12.2.8+security-04 |
affected | ||
12.3.0≤ 12.3.6 |
affected | ||
12.3.6< 12.3.6+security-04 |
affected | ||
12.4.0≤ 12.4.3 |
affected | ||
12.4.3< 12.4.3+security-02 |
affected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2026-28374
Vulnerability Information
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Vulnerability Title
IDOR in Annotations API allows unprivileged users to DELETE annotation
Source: CVE Program / CVE List V5
Vulnerability Description
Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Grafana OSS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Grafana OSS是Grafana开源的一个可视化仪表盘。 Grafana OSS存在安全漏洞，该漏洞源于编辑器可删除任何注释，即使没有读取权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Grafana | Grafana OSS | 8.5.0 ~ 11.6.14 | - |
|
II. Public POCs for CVE-2026-28374
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-28374 (1)
Same Patch Batch · Grafana · 2026-05-13 · 10 CVEs total
| CVE-2026-33376 | 7.4 HIGH | Auth Proxy IPv6 whitelist bypass |
| CVE-2026-33377 | 7.1 HIGH | Dashboard Import Overwrites ACL — Editor Privilege Escalation to Dashboard Admin |
| CVE-2026-28379 | 6.5 MEDIUM | Viewer-triggered race condition in Grafana Live leads to complete server crash |
| CVE-2026-28380 | 6.5 MEDIUM | BAC in Snapshot API allows deletion of unauthorized dashboard snapshots |
| CVE-2026-28383 | 6.5 MEDIUM | Grafana plugin resources can lead to unbounded memory allocation |
| CVE-2026-28376 | 6.5 MEDIUM | Grafana Live push endpoint allows unbounded memory allocation leading to OOM |
| CVE-2026-33378 | 6.5 MEDIUM | Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macr |
| CVE-2026-33380 | 6.3 MEDIUM | SQL Expressions Read File From Disk |
| CVE-2026-33381 | 5.9 MEDIUM | Users can generate Service Account tokens after permissions removal |
IV. Related Vulnerabilities
V. Comments for CVE-2026-28374
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