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Grafana OSS CVE-2026-28380

| EUVDEUVD-2026-30140 MEDIUM
Missing Authorization (CWE-862)
2026-05-13 GRAFANA GHSA-29p4-5443-x453
6.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SUSE
MEDIUM
qualitative
Red Hat
6.5 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

2
Analysis Generated
Jun 08, 2026 - 11:46 vuln.today
Patch available
May 13, 2026 - 21:02 EUVD

DescriptionCVE.org

Any Editor could delete any snapshot, even if they have no access to read or write them.

AnalysisAI

Missing authorization in Grafana OSS's snapshot deletion endpoint allows any authenticated Editor-role user to delete arbitrary snapshots across the platform, regardless of whether they hold read or write access to those snapshots. Affected versions span a wide release range from 9.4.0 through 13.0.1 across multiple major branches (CPE: cpe:2.3:a:grafana:grafana_oss). With EPSS at 0.03% (8th percentile), SSVC exploitation rated none, and no public exploit identified at time of analysis, the practical threat is primarily insider abuse or compromised Editor credentials being used to destroy monitoring data outside an attacker's legitimate scope.

Technical ContextAI

Grafana OSS is an open-source observability and dashboarding platform identified by CPE cpe:2.3:a:grafana:grafana_oss. Its snapshot feature allows users to publish point-in-time copies of dashboards as shareable, externally accessible URLs. The root cause, CWE-862 (Missing Authorization), indicates the snapshot deletion API endpoint fails to perform object-level access control checks - it validates that the caller holds an Editor role but does not verify whether that Editor has read or write permissions scoped to the specific snapshot being deleted. This is a classic Broken Object Level Authorization (BOLA) pattern within Grafana's RBAC model, where role-level checks are present but resource-level authorization is absent for this particular destructive operation.

RemediationAI

Upgrade to the appropriate vendor-patched release for your current branch: 11.6.14+security-04, 12.2.8+security-04, 12.3.6+security-04, 12.4.3+security-02, or 13.0.1+security-01, as confirmed by Grafana's security advisory at https://grafana.com/security/security-advisories/cve-2026-28380. As a compensating control prior to patching, audit and aggressively restrict Editor-role assignments to only fully trusted personnel, reducing the pool of accounts capable of exploitation - note this does not eliminate the vulnerability, only limits exposure. Alternatively, disabling the Grafana snapshot feature entirely via grafana.ini (set [snapshots] enabled = false) removes the attack surface completely at the cost of losing the snapshot sharing workflow for all users. No workarounds that surgically restrict snapshot deletion without disabling the feature entirely are evident from available data.

CVE-2026-33381 HIGH
8.1 May 13

Privilege revocation race condition in Grafana OSS allows a user whose service-account token-minting permission was just

CVE-2026-33376 HIGH
7.4 May 13

Authentication bypass in Grafana OSS Auth Proxy allows remote attackers to circumvent IPv6 allow-list restrictions becau

CVE-2026-33377 HIGH
7.1 May 13

Privilege escalation in Grafana OSS allows an authenticated Editor with write access to a dashboard they do not own to o

CVE-2026-33378 MEDIUM
6.5 May 13

Uncontrolled resource consumption in Grafana OSS allows authenticated low-privilege users to trigger an out-of-memory (O

CVE-2026-28376 MEDIUM
6.5 May 13

Unbounded memory allocation in Grafana OSS's Live push endpoint allows any authenticated user to exhaust server memory b

CVE-2026-28379 MEDIUM
6.5 May 13

Grafana Live's concurrent request handling exposes authenticated Viewer-role users as a denial-of-service vector: sendin

CVE-2026-28383 MEDIUM
6.5 May 13

Unbounded memory allocation in Grafana OSS's plugin resources endpoint allows any authenticated low-privileged user to t

CVE-2026-33380 MEDIUM
6.5 May 13

Arbitrary file read in Grafana OSS exposes server filesystem contents to authenticated low-privilege users when the sqlE

CVE-2026-21723 MEDIUM
5.3 Jul 23

Grafana OSS exposes an unauthenticated or low-privilege denial-of-service path through its alertmanager templates test e

CVE-2026-28374 MEDIUM
4.3 May 13

Improper access control in Grafana OSS allows authenticated Editor-role users to delete any annotation instance-wide, re

CVE-2026-28378 LOW
2.7 Jul 07

Cross-organization authorization bypass in Grafana OSS and Enterprise allows an authenticated Org Admin to delete public

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed
SUSE Manager Client Tools 15 Fixed
SUSE Manager Client Tools for SLE 15 Fixed
SUSE Multi-Linux Manager Client Tools for SLE 15 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP4 Fixed

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CVE-2026-28380 vulnerability details – vuln.today

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