CVE-2026-21726

MEDIUM

5.3

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht4/15/2026

Zuletzt geandert4/17/2026

Quellenvd

Honeypot-Sichtungen0

Referenzen

https://grafana.com/security/security-advisories/cve-2026-21726(security@grafana.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.