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CVE-2026-72752— Routinator exits when requesting the output repeatedly

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.

当客户端并发多次请求 JSON 输出时，Routinator 会出现内存耗尽问题。攻击者可以通过向 HTTP 服务器建立大量连接来恶意触发此状况。此外，当一次性丢弃包含过多元数据的载荷项时，Routinator 还会发生栈溢出并退出。 此漏洞仅影响将 HTTP 或 RTR 服务器暴露给不可信网络的用户。

CVSS 6.5 · Medium EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1499.003 · Application Exhaustion Flood

Affected Version Matrix 1

VendorProduct Version RangeStatus
NLnet Labs Routinator 0.15.3< * unaffected
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I. Basic Information for CVE-2026-72752

Vulnerability Information
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Vulnerability Title
Routinator exits when requesting the output repeatedly
Source: CVE Program / CVE List V5
Vulnerability Description
Routinator runs out of memory when the JSON output is requested many times concurrently. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server. Additionally Routinator runs into a stack overflow and exits when a payload item with too much metadata is discarded at once. This only affects users that make their HTTP or RTR server available to untrusted networks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
NLnet Labs Routinator 0.15.3 ~ * -

II. Public POCs for CVE-2026-72752

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III. Intelligence Information for CVE-2026-72752

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Vendor Advisories for CVE-2026-72752 (1)

Same Patch Batch · NLnet Labs · 2026-10-26 · 7 CVEs total

CVE-2026-72753 8.2 HIGH Routinator incorrectly handles delta updates
CVE-2026-72756 7.5 HIGH Routinator exits on malformed rsync URIs
CVE-2026-72754 7.5 HIGH Routinator exits when parsing an incorrect or very large CRL file
CVE-2026-72758 7.5 HIGH Routinator may exit on malformed ranges
CVE-2026-72757 5.3 MEDIUM Routinator HTTP server becomes unavailable with many unclosed connections
CVE-2026-72755 3.8 LOW Routinator stores TA certificate in cache without validation

IV. Related Vulnerabilities

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