What is CVE-2026-49233?

CVE-2026-49233 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-06-08.

How severe is CVE-2026-49233?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Nlnet Labs Routinator

CVE-2026-49233

Routinator does not properly check the module component of rsync URIs, which are used to create the file system paths for the Routinator cache. This allows for path traversal by having a module name containing .., potentially providing an…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.004 (35.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Nlnet Labs Routinator — versions 0.15.2
Nlnetlabs Routinator

Weakness classification (CWE)

CWE-22 — Path Traversal

References

sep@nlnetlabs.nl (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-49233?: CVE-2026-49233 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-06-08.
How severe is CVE-2026-49233?: High severity. CVSS v3 base score is 7.5 out of 10.