What is CVE-2026-49235?

CVE-2026-49235 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2026-06-08.

How severe is CVE-2026-49235?

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

Vulnerability in Nlnet Labs Routinator

CVE-2026-49235

When Routinator encounters a file via RRDP using a specifically crafted Document Type Definition, Routinator crashes.

Published 2026-06-08 · last modified 2026-07-23.

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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.9th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Nlnet Labs Routinator — versions 0.15.2
Nlnetlabs Routinator

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

www.nlnetlabs.nl/downloads/routinator/CVE-2026-49235.txt (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-49235?: CVE-2026-49235 is a high-severity vulnerability in Nlnet Labs Routinator, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2026-06-08.
How severe is CVE-2026-49235?: High severity. CVSS v3 base score is 7.5 out of 10.