# CVE-2026-19475: SQL Data Source Plugin: OOM DoS via $__timeGroup macro

> Authenticated users can cause a denial of service in Grafana by injecting a timeGroup macro into SQL queries, leading to uncontrolled memory consumption.

- **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:** 2 Sep 2026
- **Updated:** 3 Sep 2026
- **Also known as:** BIT-grafana-2026-19475, GHSA-f7qf-p234-rj62, MINI-22g9-2rvq-fpjp, MINI-2wqj-63p3-hrvg, MINI-58cg-j6w8-xjmf, MINI-65fj-9524-fv76, MINI-9fr8-27g2-xq3j, MINI-crfj-qhwm-q8hv, MINI-fh9j-cfwg-87hj, MINI-fmqg-8mw2-2259, MINI-gmjr-9686-v48q, MINI-m244-jr65-j356, MINI-m7pw-qxq4-2vrq, MINI-phqf-r48r-9mc9, MINI-q6xg-3c5q-x4qq, MINI-rwhc-jx2g-853m, MINI-vg4v-pfxm-cc67, MINI-wr3m-f96x-5c2q

## What is CVE-2026-19475?

CVE-2026-19475 is a medium-severity denial of service vulnerability in Grafana OSS, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An authenticated user with permission to query a SQL data source can bypass the fix for CVE-2026-33375 by injecting the timeGroup macro through a WHERE clause, which Grafana's regex-based macro parsing does not reject. Evaluating the injected macro causes uncontrolled memory consumption that can terminate the Grafana server process, resulting in a denial of service. The Microsoft SQL Server, PostgreSQL, and MySQL data sources are affected.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2026-19475?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `grafana` | Bitnami | From 11.6.0 | 12.4.10, 13.0.8, 13.1.5 |

## How do I fix CVE-2026-19475?

Upgrade grafana to a fixed version for your release line: 12.4.10, 13.0.8 or 13.1.5.

## Is CVE-2026-19475 being exploited?

There is no known exploitation of CVE-2026-19475 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-19475 and fix it if it is affected.

What it is: CVE-2026-19475 is a medium-severity denial of service vulnerability in Grafana OSS, published on 2 Sep 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-2026-19475 in the wild and no public exploit code.

Affected packages and fixed versions:
- grafana (Bitnami): affected from 11.6.0; fixed in 12.4.10, 13.0.8, 13.1.5

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-2026-19475/ (Markdown: https://insights.sbomify.com/CVE-2026-19475/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-19475
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-19475
- OSV: https://osv.dev/vulnerability/CVE-2026-19475

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-19475/
Summaries are generated and may contain mistakes; the official description above is the record.