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

> An authenticated user can trigger a denial of service in Grafana OSS by causing unbounded memory allocation via the plugin resources endpoint.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 May 2026
- **Updated:** 27 Aug 2026
- **Also known as:** BIT-grafana-2026-28383, GHSA-9mfc-92xm-c5mf, MINI-2p8w-vm68-9cq7, MINI-5jqw-cf9f-8g8j, MINI-5rrq-hch6-7v5m, MINI-66mv-74m5-wf2p, MINI-6g8h-89pf-qmwx, MINI-7jhx-pfx6-2838, MINI-8775-989w-9xrj, MINI-93cp-qxmq-5m5w, MINI-96g5-rg94-qmfj, MINI-9gjv-whv3-rhr2, MINI-cv28-xgpg-597v, MINI-cx68-9f7j-4mcp, MINI-gx93-74f6-x6m4, MINI-gxhv-m33c-9mfp, MINI-h4q8-9hpw-2694, MINI-rxw9-j4vg-w44c, UBUNTU-CVE-2026-28383

## What is CVE-2026-28383?

CVE-2026-28383 is a medium-severity denial of service vulnerability in Grafana Grafana, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2026-28383?

1 open source package ship an affected version, including grafana. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `grafana` | Bitnami | From 6.7.0 | 11.6.14, 12.2.8, 12.3.6, 12.4.3, 13.0.1 |

Products: Grafana Grafana.

## How do I fix CVE-2026-28383?

Upgrade grafana to a fixed version for your release line: 11.6.14, 12.2.8, 12.3.6 or 12.4.3.

## Is CVE-2026-28383 being exploited?

There is no known exploitation of CVE-2026-28383 in the wild and no public exploit code.

## Other vulnerabilities in Grafana Grafana

- [CVE-2021-43798](https://insights.sbomify.com/CVE-2021-43798/): Grafana Path Traversal (high 7.5, exploited in the wild)
- [CVE-2025-41115](https://insights.sbomify.com/CVE-2025-41115/): Incorrect privilege assignment (critical 10.0)
- [CVE-2022-39328](https://insights.sbomify.com/CVE-2022-39328/): Grafana vulnerable to race condition allowing privilege escalation (critical 9.8)
- [CVE-2022-28660](https://insights.sbomify.com/CVE-2022-28660/): Auth bypass in n/a (critical 9.8)
- [CVE-2022-26148](https://insights.sbomify.com/CVE-2022-26148/): Information disclosure in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-28383 and fix it if it is affected.

What it is: CVE-2026-28383 is a medium-severity denial of service vulnerability in Grafana Grafana, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-28383 in the wild and no public exploit code.

Affected packages and fixed versions:
- grafana (Bitnami): affected from 6.7.0; fixed in 11.6.14, 12.2.8, 12.3.6, 12.4.3, 13.0.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-28383/ (Markdown: https://insights.sbomify.com/CVE-2026-28383/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-28383
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28383
- OSV: https://osv.dev/vulnerability/CVE-2026-28383

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-28383/
Summaries are generated and may contain mistakes; the official description above is the record.