Description
Insufficient escaping in the report scheduler within Checkmk <2.4.0p13, <2.3.0p38, <2.2.0p46 and 2.1.0 (EOL) allows authenticated attackers to define the storage location of report file pairs beyond their intended root directory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Checkmk | Checkmk | 2.4.0 – < 2.4.0p13, 2.3.0 – < 2.3.0p38, 2.2.0 – < 2.2.0p46, 2.1.0 | 2.4.0p13 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | check-mk | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | check-mk | No fix yet | — |
Advisories 1
- WID-SEC-2025-2253 Checkmk: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 9, 2025
References
- https://checkmk.com/werk/17984 vendor-advisory
- https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250730-01_Checkmk_Path_Traversal third-party-advisory