---
id: 4133
title: "Cortex Security Audit"
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/cortex-security-audit.html"
published_at: "2026-07-05 22:00"
tags: ["open-source", "access-control", "security-audit", "audit", "ostif", "prometheus", "multi-tenancy", "tenant-isolation"]
phying_url: "https://phying.com/item/4133"
lang: en
---

# Cortex Security Audit

## Summary

Quarkslab audited Cortex, a multi-tenant Prometheus time-series store, for OSTIF: seven findings, including tenant impersonation via PushStream gRPC, were identified and all resolved.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **Published:** 2026-07-05 22:00
- **Original:** https://blog.quarkslab.com/cortex-security-audit.html
- **Phying News:** https://phying.com/item/4133