# CVE-2026-17033: CVE-2026-17033 CVE Record

> An authenticated attacker can inject JavaScript via a crafted alert URL, leading to code execution in another user's Grafana session.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 24 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** BIT-grafana-2026-17033, GHSA-7vc5-9278-236p, MINI-2h5p-vfr5-qcg9, MINI-2x32-h5gr-hf52, MINI-3fc9-fp29-3g6p, MINI-3m7h-g7jx-84pq, MINI-4m6j-g62v-fhgx, MINI-5cfw-v2c5-479w, MINI-679w-mvh3-qpj8, MINI-6j5h-jfv9-5mcj, MINI-7fg6-9fhp-hj84, MINI-9jh7-232x-q56v, MINI-9r59-63f5-gxv7, MINI-h45w-vw56-7x7q, MINI-q2r4-fj57-ffjg, MINI-v956-pvvg-542p, MINI-x2fw-9g7r-6f84, MINI-xf7x-hc9w-9cm4

## What is CVE-2026-17033?

CVE-2026-17033 is a medium-severity cross-site scripting vulnerability in Grafana OSS, published on 24 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

An authenticated attacker with Editor access or alert.instances.external:write can submit an external Alertmanager alert containing a controlled generatorURL. The attacker is authorized to create the alert, but not to execute script in another user's Grafana session.

Grafana renders alert.generatorURL directly as the Alert Details See source LinkButton href without URL-scheme sanitization or a safe-protocol allowlist. The click interceptor's :// heuristic can be bypassed by placing :// inside a JavaScript comment. When a user with read access clicks See source, the browser executes attacker-controlled JavaScript in the Grafana origin with the clicking user's permissions.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-17033?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `grafana` | Bitnami | All versions | 12.4.10, 13.1.0 |

## How do I fix CVE-2026-17033?

Upgrade grafana to a fixed version for your release line: 12.4.10 or 13.1.0.

## Is CVE-2026-17033 being exploited?

There is no known exploitation of CVE-2026-17033 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-17033 and fix it if it is affected.

What it is: CVE-2026-17033 is a medium-severity cross-site scripting vulnerability in Grafana OSS, published on 24 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-17033 in the wild and no public exploit code.

Affected packages and fixed versions:
- grafana (Bitnami): affected all versions; fixed in 12.4.10, 13.1.0

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-2026-17033/ (Markdown: https://insights.sbomify.com/CVE-2026-17033/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-17033
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-17033
- OSV: https://osv.dev/vulnerability/CVE-2026-17033

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-17033/
Summaries are generated and may contain mistakes; the official description above is the record.