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CVE-2026-49234— Routinator crashes on specifically crafted ASN strings in the API

Quick assessment

Affected
NLnet Labs Routinator
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NLnet Labs Routinator是NLnet Labs开源的一个RPKI路由起源验证服务。 NLnet Labs Routinator存在输入验证错误漏洞，该漏洞源于向/api/v1/origins端点发送特制非UTF-8字符串作为select-asn查询参数时可能导致崩溃。

AI Predicted 5.3 Difficulty: Easy EPSS 0.33% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
NLnet Labs Routinator 0.15.2< * unaffected
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I. Basic Information for CVE-2026-49234

Vulnerability Information
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Vulnerability Title
Routinator crashes on specifically crafted ASN strings in the API
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
NLnet Labs Routinator 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NLnet Labs Routinator是NLnet Labs开源的一个RPKI路由起源验证服务。 NLnet Labs Routinator存在输入验证错误漏洞，该漏洞源于向/api/v1/origins端点发送特制非UTF-8字符串作为select-asn查询参数时可能导致崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NLnet Labs Routinator 0.15.2 ~ * -

II. Public POCs for CVE-2026-49234

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III. Intelligence Information for CVE-2026-49234

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Vendor Advisories for CVE-2026-49234 (1)

Same Patch Batch · NLnet Labs · 2026-06-08 · 4 CVEs total

CVE-2026-49233 Routinator cache path traversal using rogue rsync URIs
CVE-2026-49232 Routinator exits when accepting an incoming HTTP or RTR connection fails
CVE-2026-49235 Routinator crashes on specifically crafted RRDP XML files

IV. Related Vulnerabilities

Same product: Routinator
Same vendor: NLnet Labs
Same weakness: CWE-20

V. Comments for CVE-2026-49234

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