CVE-2026-49234

High

Description

When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes. This only affects users who allow API access from untrusted networks.

SeverityHigh

CVSS7.5

Exploit probability—

ProductNlnetlabs Routinator

PublishedJun 8, 2026

First seenJun 8, 2026

Weakness typeCWE-20Improper input validation

How to fix

Update

nlnetlabs routinator0.15.2 or later

Vendor advisories

nlnetlabs.nl/downloads/routinator/CVE-2026-49234.txt

Affected products

Product	Affected versions	Fixed in
nlnetlabs routinator	v < 0.15.2	0.15.2

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