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

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

Published: 2026-05-13 Last update: 2026-06-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-28374 is rated Low Risk (20.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-28374

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-14 — 0.03% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-28374

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]

Weakness enumeration for CVE-2026-28374

GitHub Security Advisory for CVE-2026-28374

GHSA-8mrj-8pc8-39jm · Severity: medium — Editors could delete any annotation, even those they do not have read access to. The editor user...

OS Trackers for CVE-2026-28374

vendor priority summary link
suse medium — https://www.suse.com/security/cve/CVE-2026-28374/
ubuntu medium CVE-2026-28374 medium priority: Ubuntu including 1 source packages (grafana), 5 status rows across 5 suites (jammy, noble, questing, resolute, upstream): DNE 4, needs-triage 1. https://ubuntu.com/security/CVE-2026-28374

Affected software / configurations for CVE-2026-28374

Vendor Product Version Raw CPE
grafana grafana >= 8.5.0, < 11.6.14 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.2.0, < 12.2.8 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.3.0, < 12.3.6 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.4.0, < 12.4.3 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana 11.6.14 cpe:2.3:a:grafana:grafana:11.6.14:-:*:*:*:*:*:*
grafana grafana 11.6.14 cpe:2.3:a:grafana:grafana:11.6.14:security01:*:*:*:*:*:*
grafana grafana 12.2.8 cpe:2.3:a:grafana:grafana:12.2.8:-:*:*:*:*:*:*
grafana grafana 12.2.8 cpe:2.3:a:grafana:grafana:12.2.8:security01:*:*:*:*:*:*
grafana grafana 12.3.6 cpe:2.3:a:grafana:grafana:12.3.6:-:*:*:*:*:*:*
grafana grafana 12.3.6 cpe:2.3:a:grafana:grafana:12.3.6:security01:*:*:*:*:*:*
grafana grafana 12.4.3 cpe:2.3:a:grafana:grafana:12.4.3:-:*:*:*:*:*:*
grafana grafana 13.0.0 cpe:2.3:a:grafana:grafana:13.0.0:*:*:*:*:*:*:*
grafana grafana 13.0.1 cpe:2.3:a:grafana:grafana:13.0.1:-:*:*:*:*:*:*

References for CVE-2026-28374

cvelogic Threat Intelligence