6.5

CVE-2026-28383: Grafana plugin resources can lead to unbounded memory allocation

Analyzed
AliasesUBUNTU-CVE-2026-28383CGA-96x3-986r-2jfgCGA-c4vr-599v-7jr5
Published 13-05-2026Last modified 27-08-2026

Vulnerability summary

CVE-2026-28383 is a medium (CVSS 6.5) vulnerability in grafana. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 26% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · -0.09 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 8 · Related 6
OPENSUSE-SU-2026:10932-1OPENSUSE-SU-2026:20940-1RHSA-2026:68767RHSA-2026:68778RHSA-2026:68821SUSE-SU-2026:2768-1

Timeline

  1. 13-05-2026
    PublishedVulnerability first disclosed.
  2. 27-08-2026
    Last modifiedVulnerability information updated.

Description

A request to the Grafana plugin resources endpoint can cause unbounded memory allocation by reading the entire request body into memory. An authenticated user can exploit this to trigger an out-of-memory condition, potentially causing a denial of service.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

Decrease -0.09 pp

From 0.42% on 04-10-2026

04-10-202603-11-2026

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

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard6 products
  • grafana-12.0All versions (No fix recorded)
  • grafana-12.1All versions (No fix recorded)
  • grafana-12.4< 12.4.3.02-r0
  • grafana-fips-12.0All versions (No fix recorded)
  • grafana-fips-12.1All versions (No fix recorded)
Grafana2 products
  • grafanaEOL≥ 8.5.0, < 11.6.14 | ≥ 12.2.0, < 12.2.8 | ≥ 12.3.0, < 12.3.6 | ≥ 12.4.0, < 12.4.3 | 11.6.14 | 11.6.14:security01 | 12.2.8 | 12.2.8:security01 | 12.3.6 | 12.3.6:security01 | 12.4.3 | 13.0.0 | 13.0.1
  • grafana oss≥ 6.7.0, ≤ 11.6.14 | ≥ 11.6.14, < 11.6.14+security-04 | ≥ 12.0.0, ≤ 12.2.8 | ≥ 12.2.8, < 12.2.8+security-04 | ≥ 12.3.0, ≤ 12.3.6 | ≥ 12.3.6, < 12.3.6+security-04 | ≥ 12.4.0, ≤ 12.4.3 | ≥ 12.4.3, < 12.4.3+security-02 | ≥ 13.0.0, ≤ 13.0.1 | ≥ 13.0.1, < 13.0.1+security-01
Ubuntu1 product
  • grafanaAll versions (No fix recorded)
Wolfi1 product
  • grafana-12.4< 12.4.3.02-r0

4 vendors · 10 products

References

5 links