# CVE-2026-21721: Dashboard Permissions Scope Bypass Enables Cross‑Dashboard Privilege Escalation

> Attackers with dashboard management rights can bypass scope checks to modify permissions on other dashboards, leading to internal privilege escalation.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N`)
- **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:** 27 Jan 2026
- **Updated:** 27 Aug 2026
- **Also known as:** BIT-grafana-2026-21721, CLSA-2026-1772812307, GHSA-jgfq-mgxg-4qwm, MINI-294m-235h-5gcf, MINI-62w5-jxp3-7gh2, MINI-6r7p-5x33-6fx3, MINI-f33g-6cm6-mrj3, MINI-gq6m-rvcx-vmv2, MINI-hmp6-wm9g-9gqv, MINI-jjmq-x65x-24w6, MINI-mq3x-xr88-f53q, MINI-pj2j-8f53-4fx3, MINI-v559-73pm-3f7w, MINI-vg2j-qxgg-487v, MINI-w2j4-888g-ggqh, MINI-wvvv-rwqg-3fcc, MINI-xx82-7cfg-4wjm, RHSA-2026:3078, RHSA-2026:3529, UBUNTU-CVE-2026-21721

## What is CVE-2026-21721?

CVE-2026-21721 is a high-severity missing authorization vulnerability in Grafana Grafana, published on 27 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The dashboard permissions API does not verify the target dashboard scope and only checks the dashboards.permissions:* action. As a result, a user who has permission management rights on one dashboard can read and modify permissions on other dashboards. This is an organization‑internal privilege escalation.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-21721?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `grafana` | Bitnami | From 10.2.0 | 11.6.9, 12.0.8, 12.1.5, 12.2.3, 12.3.1 |
| `grafana` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:10.2.6-20.el10_0 |
| `grafana-debuginfo` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:10.2.6-20.el10_0 |
| `grafana-debugsource` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:10.2.6-20.el10_0 |
| `grafana-selinux` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:10.2.6-20.el10_0 |
| `grafana` | Red Hat:rhel_eus:9.6::appstream | All versions | 0:10.2.6-17.el9_6 |
| `grafana-debuginfo` | Red Hat:rhel_eus:9.6::appstream | All versions | 0:10.2.6-17.el9_6 |
| `grafana-debugsource` | Red Hat:rhel_eus:9.6::appstream | All versions | 0:10.2.6-17.el9_6 |
| `grafana-selinux` | Red Hat:rhel_eus:9.6::appstream | All versions | 0:10.2.6-17.el9_6 |

Products: Grafana Grafana.

## How do I fix CVE-2026-21721?

Upgrade grafana to a fixed version for your release line: 11.6.9, 12.0.8, 12.1.5 or 12.2.3.

## Is CVE-2026-21721 being exploited?

There is no known exploitation of CVE-2026-21721 in the wild and no public exploit code.

Public exploit code:

- Эксплоит на CVE-2026-21721 (github_poc): https://github.com/Leonideath/Exploit-LPE-CVE-2026-21721

## 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-2026-21721 and fix it if it is affected.

What it is: CVE-2026-21721 is a high-severity missing authorization vulnerability in Grafana Grafana, published on 27 Jan 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-2026-21721 in the wild and no public exploit code.

Affected packages and fixed versions:
- grafana (Bitnami): affected from 10.2.0; fixed in 11.6.9, 12.0.8, 12.1.5, 12.2.3, 12.3.1

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-2026-21721/ (Markdown: https://insights.sbomify.com/CVE-2026-21721/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21721
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21721
- OSV: https://osv.dev/vulnerability/CVE-2026-21721

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21721/
Summaries are generated and may contain mistakes; the official description above is the record.