Upstream information
Description
The CVE-2021-36156 fix validates the namespace parameter for path traversal sequences after a single URL decode, by double encoding, an attacker can read files at the Ruler API endpoint /loki/api/v1/rules/{namespace}Thanks to Prasanth Sundararajan for reporting this vulnerability.
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (Grafana Labs) | SUSE |
|---|---|---|
| Base Score | 5.3 | 5.3 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | Low | Low |
| Integrity Impact | None | None |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | grafana | Not affected |
| SUSE Manager Client Tools 15 | grafana | Not affected |
| SUSE Manager Client Tools for SLE 15 | grafana | Not affected |
| SUSE Multi-Linux Manager Client Tools for SLE 15 | grafana | Not affected |
| openSUSE Leap 15.6 | grafana | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | grafana | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | grafana | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | grafana | Not affected |
| openSUSE Leap 15.3 | grafana | Not affected |
| openSUSE Leap 15.4 | grafana | Not affected |
| openSUSE Leap 15.5 | grafana | Not affected |
| Products at an unknown state of their lifecycle. | ||
| SUSE Multi Linux Manager Tools SLE-15 | grafana | Not affected |
| Container Status | ||
| ses/7.1/ceph/grafana ses/7/ceph/grafana | grafana | Not affected |
SUSE Timeline for this CVE
CVE page created: Wed Apr 15 22:38:03 2026CVE page last modified: Thu Apr 16 14:55:26 2026