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}
Exact source revision recorded 25 Oct 2026 05:17:32 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-21726
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-22
Original publisher date fields
published: 2026-04-15T20:16:34.177
lastModified: 2026-06-17T13:20:05.657
1 source CPE criteria · context only
- cpe:2.3:a:grafana:loki:*:*:*:*:*:*:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON