CVE-2026-28375 | Grafana Testdata datasource can issue unbounded memory allocations

A testdata data-source can be used to trigger out-of-memory crashes in Grafana.

Published: 2026-03-27 Last update: 2026-03-31 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-28375 is rated Low Risk (26.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.01%). 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-2026-28375

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 2026-03-28 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-28375

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 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:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]

Weakness enumeration for CVE-2026-28375

OS Trackers for CVE-2026-28375

vendor priority summary link
alpine — CVE-2026-28375: 1 source package rows (grafana); 3 state rows across 1 repos (edge-community); fixed 0, open 3. https://security.alpinelinux.org/vuln/CVE-2026-28375
redhat medium — https://access.redhat.com/security/cve/CVE-2026-28375
suse medium CVE-2026-28375 severity moderate: SUSE including 10 source package names (firewalld-prometheus-config-0.1-150002.3.8.1, golang-github-lusitaniae-apache_exporter-1.0.10-150002.3.6.1, …), 15 product×package rows across 2 product lines (SUSE Multi Linux Manager Tools SLE-15, SUSE Multi Linux Manager Tools SLE-Micro-5): First Fixed 15. https://www.suse.com/security/cve/CVE-2026-28375/
ubuntu medium CVE-2026-28375 medium priority: Ubuntu including 1 source packages (grafana), 5 status rows across 5 suites (jammy, noble, questing, upstream, xenial): DNE 3, needs-triage 2. https://ubuntu.com/security/CVE-2026-28375

Affected software / configurations for CVE-2026-28375

Vendor Product Version Raw CPE
grafana grafana < 8.1.0 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 11.6.14, < 12.0.0 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.1.10, < 12.2.0 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.2.8, < 12.3.0 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
grafana grafana >= 12.3.6, < 12.4.0 cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*

References for CVE-2026-28375

cvelogic Threat Intelligence