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CVE-2026-49232— Routinator exits when accepting an incoming HTTP or RTR connection fails

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存在安全漏洞，该漏洞源于接受HTTP或RTR连接时遇到错误即退出，攻击者可打开大量连接触发此条件，可能导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.43% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
NLnet Labs Routinator 0.15.2< * unaffected
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I. Basic Information for CVE-2026-49232

Vulnerability Information
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Vulnerability Title
Routinator exits when accepting an incoming HTTP or RTR connection fails
Source: CVE Program / CVE List V5
Vulnerability Description
Routinator exits on any error when accepting incoming HTTP or RTR connections, including ones it can recover from such as running out of file descriptors. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP or RTR server. This only affects users that make their HTTP or RTR server available to untrusted networks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
NLnet Labs Routinator 安全漏洞
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存在安全漏洞，该漏洞源于接受HTTP或RTR连接时遇到错误即退出，攻击者可打开大量连接触发此条件，可能导致拒绝服务。
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-2026-49232

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III. Intelligence Information for CVE-2026-49232

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News Coverage for CVE-2026-49232 (1)

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

CVE-2026-49233 Routinator cache path traversal using rogue rsync URIs
CVE-2026-49234 Routinator crashes on specifically crafted ASN strings in the API
CVE-2026-49235 Routinator crashes on specifically crafted RRDP XML files

IV. Related Vulnerabilities

Same product: Routinator
Same vendor: NLnet Labs
Same weakness: CWE-755

V. Comments for CVE-2026-49232

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