CVE-2026-9703
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Viewer role can create, modify and delete Loki alerting rules
Grafana's data source proxy did not apply role-based access control to write requests forwarded to Loki data sources. A user holding only the Viewer role on an affected Grafana instance could send POST, PUT and DELETE requests through the proxy to the Loki rules API (/loki/api/v1/rules), allowing them to create, modify and delete Loki alerting rules. Because those rules are stored by Loki rather than by Grafana, the change took effect for every user of that Loki data source, not only for the Viewer who made the request. Exploitation requires an authenticated Viewer account on the Grafana instance and a configured Loki data source; no other privileges are needed. Both Grafana OSS and Grafana Enterprise are affected. The defect is in Grafana's data source proxy; Loki itself is not vulnerable and does not need to be patched.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Grafana Enterprise
- Vendor
- Grafana
- Product
- Grafana Enterprise
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.0.0 | affected | semver | Unavailable | 11.5.10 | None listed |
| 11.6.0 | affected | semver | Unavailable | 11.6.16 | None listed |
| 12.0.0 | affected | semver | Unavailable | 12.1.10 | None listed |
| 12.2.0 | affected | semver | Unavailable | 12.2.10 | None listed |
| 12.3.0 | affected | semver | Unavailable | 12.3.8 | None listed |
| 12.4.0 | affected | semver | Unavailable | 12.4.5 | None listed |
| 13.0.0 | affected | semver | Unavailable | 13.0.3 | None listed |
Grafana OSS
- Vendor
- Grafana
- Product
- Grafana OSS
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 12.3.0 | affected | semver | Unavailable | 12.3.8 | None listed |
| 12.4.0 | affected | semver | Unavailable | 12.4.5 | None listed |
| 8.0.0 | affected | semver | Unavailable | 12.3.0 | None listed |
| 13.0.0 | affected | semver | Unavailable | 13.0.3 | None listed |