CVE-2026-49234

Routinator crashes on specifically crafted ASN strings in the API

Published Jun 8, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

This issue is fixed in 0.15.2 and all later versions.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-gc6q-cwcj-3vh9 Routinator crashes when sending a maliciously crafted select-asn query parameter
History
Type Values Removed Values Added
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Nlnetlabs
Nlnetlabs routinator
Vendors & Products Nlnetlabs
Nlnetlabs routinator
Type Values Removed Values Added
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.
Title Routinator crashes on specifically crafted ASN strings in the API
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NLnet Labs
Published
Updated
Jun 8, 2026, 3:39 PM
Reserved
May 28, 2026, 8:28 AM
Status
Analyzed
Published
Jun 8, 2026, 3:16 PM
Modified
Jul 23, 2026, 7:10 AM