# CVE-2026-42127: grafana: The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated atta...

CVE-2026-42127 is fixed in 3 products on 1 platform, first by RHSA-2026:67517, released July 6, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-42127
- Priority: High
- CVSS: 7.5 (important)
- EPSS: 0.0043
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 22, 2026

## Description

The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | grafana RHEL 10 | 10.2.6-26.el10_0 | [RHSA-2026:67517](https://patchblox.com/security/data/fix/linux/rhsa-2026-67517.md) | Jul 6, 2026 |
| Linux | grafana RHEL 8 | 0:9.2.10-32.el8_10.1 | [RHSA-2026:54243](https://patchblox.com/security/data/fix/linux/rhsa-2026-54243.md) | Aug 12, 2026 |
| Linux | grafana RHEL 9 | 0:10.2.6-23.el9_8.1 | [RHSA-2026:54184](https://patchblox.com/security/data/fix/linux/rhsa-2026-54184.md) | Aug 12, 2026 |
| Linux | grafana almalinux 10 | 10.2.6-28.el10_2.4 | [ALSA-2026:54178](https://patchblox.com/security/data/fix/linux/alsa-2026-54178.md) | Aug 12, 2026 |
| Linux | grafana almalinux 8 | 9.2.10-32.el8_10.1 | [ALSA-2026:54243](https://patchblox.com/security/data/fix/linux/alsa-2026-54243.md) | Aug 12, 2026 |
| Linux | grafana almalinux 9 | 10.2.6-23.el9_8.1 | [ALSA-2026:54184](https://patchblox.com/security/data/fix/linux/alsa-2026-54184.md) | Aug 12, 2026 |
| Linux | grafana ol 8 | 0:9.2.10-32.0.1.el8_10.1 | [ELSA-2026-54243](https://patchblox.com/security/data/fix/linux/elsa-2026-54243.md) | Aug 13, 2026 |
| Linux | grafana ol 9 | 0:10.2.6-23.el9_8.1 | [ELSA-2026-54184](https://patchblox.com/security/data/fix/linux/elsa-2026-54184.md) | Aug 14, 2026 |
| Linux | grafana opensuse-leap 16.0 | 12.4.10-bp160.1.1 | [OPENSUSE-SU-2026:22125-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22125-1.md) | Nov 7, 2026 |
| Linux | grafana rocky 8 | 0:9.2.10-32.el8_10.1 | [RLSA-2026:54243](https://patchblox.com/security/data/fix/linux/rlsa-2026-54243.md) | Sep 16, 2026 |
| Linux | grafana rocky 9 | 0:10.2.6-23.el9_8.1 | [RLSA-2026:54184](https://patchblox.com/security/data/fix/linux/rlsa-2026-54184.md) | Sep 16, 2026 |
| Linux | grafana sles 15.7 | 12.4.10-150200.3.94.3 | [SUSE-SU-2026:4600-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4600-1.md) | Nov 7, 2026 |
| Linux | grafana-selinux RHEL 8 | 0:9.2.10-32.el8_10.1 | [RHSA-2026:54243](https://patchblox.com/security/data/fix/linux/rhsa-2026-54243.md) | Aug 12, 2026 |
| Linux | grafana-selinux RHEL 9 | 0:10.2.6-23.el9_8.1 | [RHSA-2026:54184](https://patchblox.com/security/data/fix/linux/rhsa-2026-54184.md) | Aug 12, 2026 |
| Linux | grafana-selinux almalinux 10 | 10.2.6-28.el10_2.4 | [ALSA-2026:54178](https://patchblox.com/security/data/fix/linux/alsa-2026-54178.md) | Aug 12, 2026 |
| Linux | grafana-selinux almalinux 8 | 9.2.10-32.el8_10.1 | [ALSA-2026:54243](https://patchblox.com/security/data/fix/linux/alsa-2026-54243.md) | Aug 12, 2026 |
| Linux | grafana-selinux almalinux 9 | 10.2.6-23.el9_8.1 | [ALSA-2026:54184](https://patchblox.com/security/data/fix/linux/alsa-2026-54184.md) | Aug 12, 2026 |
| Linux | grafana-selinux ol 8 | 0:9.2.10-32.0.1.el8_10.1 | [ELSA-2026-54243](https://patchblox.com/security/data/fix/linux/elsa-2026-54243.md) | Aug 13, 2026 |
| Linux | grafana-selinux ol 9 | 0:10.2.6-23.el9_8.1 | [ELSA-2026-54184](https://patchblox.com/security/data/fix/linux/elsa-2026-54184.md) | Aug 14, 2026 |
| Linux | system-user-grafana sles 15.7 | 1.0.0-150200.5.8.1 | [SUSE-SU-2026:4600-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4600-1.md) | Nov 7, 2026 |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.