6.5

CVE-2026-33375: Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS

Analyzed
AliasesCGA-2v4j-x9jr-w46gCGA-2wmf-4p93-7g2xCGA-2wmx-wm45-fc38
Published 26-03-2026Last modified 27-08-2026

Vulnerability summary

CVE-2026-33375 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in grafana. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.8% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.48%
0%100%
Low · +0.05 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 2 · Related 3
OPENSUSE-SU-2026:10601-1OPENSUSE-SU-2026:20940-1CGA-3R6V-RXMJ-3782

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

Increase +0.05 pp

From 0.43% on 22-09-2026

22-09-202622-10-2026

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

Chainguard3 products
  • grafana-fips-12.1< 12.1.10.01-r0
  • grafana-fips-12.2< 12.2.8.01-r0
  • grafana-fips-12.3< 12.3.6.01-r0
Grafana2 products
  • grafana≥ 11.6.0, < 11.6.14 | ≥ 12.1.0, < 12.1.10 | ≥ 12.2.0, < 12.2.8 | ≥ 12.3.0, < 12.3.6 | ≥ 12.4.0, < 12.4.2
  • grafana oss≥ 11.6.0, < 11.6.14+security-01 | ≥ 12.1.0, < 12.1.10+security-01 | ≥ 12.2.0, < 12.2.8+security-01 | ≥ 12.3.0, < 12.3.6+security-01 | ≥ 12.4.0, < 12.4.2

2 vendors · 5 products

References

3 links